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99400901 is a prime number
BaseRepresentation
bin1011110110010…
…11110011000101
320221001002101212
411323023303011
5200421312101
613510301205
72314615355
oct573136305
9227032355
1099400901
1151122406
1229357805
1317793c02
14d2b6b65
158ad71bb
hex5ecbcc5

99400901 has 2 divisors, whose sum is σ = 99400902. Its totient is φ = 99400900.

The previous prime is 99400897. The next prime is 99400919. The reversal of 99400901 is 10900499.

It is a Cunningham number, because it is equal to 99702+1.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 99400900 + 1 = 9970^2 + 1^2 .

It is a cyclic number.

It is not a de Polignac number, because 99400901 - 22 = 99400897 is a prime.

It is a super-2 number, since 2×994009012 = 19761078239223602, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99400991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49700450 + 49700451.

It is an arithmetic number, because the mean of its divisors is an integer number (49700451).

Almost surely, 299400901 is an apocalyptic number.

It is an amenable number.

99400901 is a deficient number, since it is larger than the sum of its proper divisors (1).

99400901 is an equidigital number, since it uses as much as digits as its factorization.

99400901 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2916, while the sum is 32.

The square root of 99400901 is about 9970.0000501505. Note that the first 4 decimals coincide. The cubic root of 99400901 is about 463.2301023691.

The spelling of 99400901 in words is "ninety-nine million, four hundred thousand, nine hundred one".