97931629 has 2 divisors, whose sum is σ = 97931630. Its totient is φ = 97931628.

The previous prime is 97931599. The next prime is 97931653. The reversal of 97931629 is 92613979.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 70526404 + 27405225 = 8398^2 + 5235^2 .

It is a cyclic number.

It is not a de Polignac number, because 97931629 - 2⁷ = 97931501 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97931699) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48965814 + 48965815.

It is an arithmetic number, because the mean of its divisors is an integer number (48965815).

Almost surely, 2^97931629 is an apocalyptic number.

It is an amenable number.

97931629 is a deficient number, since it is larger than the sum of its proper divisors (1).

97931629 is an equidigital number, since it uses as much as digits as its factorization.

97931629 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 183708, while the sum is 46.

The square root of 97931629 is about 9896.0410771177. The cubic root of 97931629 is about 460.9363865276.

The spelling of 97931629 in words is "ninety-seven million, nine hundred thirty-one thousand, six hundred twenty-nine".