99610397 has 2 divisors, whose sum is σ = 99610398. Its totient is φ = 99610396.

The previous prime is 99610393. The next prime is 99610451. The reversal of 99610397 is 79301699.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 56235001 + 43375396 = 7499^2 + 6586^2 .

It is a cyclic number.

It is not a de Polignac number, because 99610397 - 2² = 99610393 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99610393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49805198 + 49805199.

It is an arithmetic number, because the mean of its divisors is an integer number (49805199).

Almost surely, 2^99610397 is an apocalyptic number.

It is an amenable number.

99610397 is a deficient number, since it is larger than the sum of its proper divisors (1).

99610397 is an equidigital number, since it uses as much as digits as its factorization.

99610397 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 91854, while the sum is 44.

The square root of 99610397 is about 9980.5008391363. The cubic root of 99610397 is about 463.5553065187. Note that the first 3 decimals are identical.

The spelling of 99610397 in words is "ninety-nine million, six hundred ten thousand, three hundred ninety-seven".