97973129 has 2 divisors, whose sum is σ = 97973130. Its totient is φ = 97973128.

The previous prime is 97973111. The next prime is 97973143. The reversal of 97973129 is 92137979.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 96983104 + 990025 = 9848^2 + 995^2 .

It is a cyclic number.

It is not a de Polignac number, because 97973129 - 2¹² = 97969033 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (97973189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48986564 + 48986565.

It is an arithmetic number, because the mean of its divisors is an integer number (48986565).

Almost surely, 2^97973129 is an apocalyptic number.

It is an amenable number.

97973129 is a deficient number, since it is larger than the sum of its proper divisors (1).

97973129 is an equidigital number, since it uses as much as digits as its factorization.

97973129 is an evil number, because the sum of its binary digits is even.

The product of its digits is 214326, while the sum is 47.

The square root of 97973129 is about 9898.1376531143. The cubic root of 97973129 is about 461.0014869071.

The spelling of 97973129 in words is "ninety-seven million, nine hundred seventy-three thousand, one hundred twenty-nine".