97629157 has 2 divisors, whose sum is σ = 97629158. Its totient is φ = 97629156.

The previous prime is 97629139. The next prime is 97629179. The reversal of 97629157 is 75192679.

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., 67092481 + 30536676 = 8191^2 + 5526^2 .

It is a cyclic number.

It is not a de Polignac number, because 97629157 - 2¹⁹ = 97104869 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97699157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48814578 + 48814579.

It is an arithmetic number, because the mean of its divisors is an integer number (48814579).

Almost surely, 2^97629157 is an apocalyptic number.

It is an amenable number.

97629157 is a deficient number, since it is larger than the sum of its proper divisors (1).

97629157 is an equidigital number, since it uses as much as digits as its factorization.

97629157 is an evil number, because the sum of its binary digits is even.

The product of its digits is 238140, while the sum is 46.

The square root of 97629157 is about 9880.7467835179. The cubic root of 97629157 is about 460.4613471659.

The spelling of 97629157 in words is "ninety-seven million, six hundred twenty-nine thousand, one hundred fifty-seven".