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3940000997 is a prime number
BaseRepresentation
bin1110101011010111…
…1010010011100101
3101011120210210021212
43222311322103211
531032120012442
61450543521205
7166431312242
oct35265722345
911146723255
103940000997
111742034079
1291b5b9205
134aa37504a
142953b65c9
15180d72a82
hexead7a4e5

3940000997 has 2 divisors, whose sum is σ = 3940000998. Its totient is φ = 3940000996.

The previous prime is 3940000877. The next prime is 3940001003. The reversal of 3940000997 is 7990000493.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3690076516 + 249924481 = 60746^2 + 15809^2 .

It is a cyclic number.

It is not a de Polignac number, because 3940000997 - 212 = 3939996901 is a prime.

It is a congruent number.

It is a weakly prime.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1970000498 + 1970000499.

It is an arithmetic number, because the mean of its divisors is an integer number (1970000499).

Almost surely, 23940000997 is an apocalyptic number.

It is an amenable number.

3940000997 is a deficient number, since it is larger than the sum of its proper divisors (1).

3940000997 is an equidigital number, since it uses as much as digits as its factorization.

3940000997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 61236, while the sum is 41.

The square root of 3940000997 is about 62769.4272476657. The cubic root of 3940000997 is about 1579.4241608517.

The spelling of 3940000997 in words is "three billion, nine hundred forty million, nine hundred ninety-seven", and thus it is an aban number.