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990000743 is a prime number
BaseRepresentation
bin111011000000100…
…011011001100111
32112222212020201012
4323000203121213
54011420010433
6242123052435
733350603354
oct7300433147
92488766635
10990000743
11468914236
1223767111b
1312a148a74
14956a762b
155bda8848
hex3b023667

990000743 has 2 divisors, whose sum is σ = 990000744. Its totient is φ = 990000742.

The previous prime is 990000733. The next prime is 990000761. The reversal of 990000743 is 347000099.

It is a happy number.

990000743 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 990000743 - 26 = 990000679 is a prime.

It is a super-2 number, since 2×9900007432 = 1960202942281104098, which contains 22 as substring.

It is equal to p50364743 and since 990000743 and 50364743 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (990000733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 495000371 + 495000372.

It is an arithmetic number, because the mean of its divisors is an integer number (495000372).

Almost surely, 2990000743 is an apocalyptic number.

990000743 is a deficient number, since it is larger than the sum of its proper divisors (1).

990000743 is an equidigital number, since it uses as much as digits as its factorization.

990000743 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6804, while the sum is 32.

The square root of 990000743 is about 31464.2772521474. The cubic root of 990000743 is about 996.6557427442.

The spelling of 990000743 in words is "nine hundred ninety million, seven hundred forty-three", and thus it is an aban number.