97620937 has 2 divisors, whose sum is σ = 97620938. Its totient is φ = 97620936.

The previous prime is 97620889. The next prime is 97620949. The reversal of 97620937 is 73902679.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 53743561 + 43877376 = 7331^2 + 6624^2 .

It is an emirp because it is prime and its reverse (73902679) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 97620937 - 2¹¹ = 97618889 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 97620893 and 97620902.

It is not a weakly prime, because it can be changed into another prime (97620977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48810468 + 48810469.

It is an arithmetic number, because the mean of its divisors is an integer number (48810469).

Almost surely, 2^97620937 is an apocalyptic number.

It is an amenable number.

97620937 is a deficient number, since it is larger than the sum of its proper divisors (1).

97620937 is an equidigital number, since it uses as much as digits as its factorization.

97620937 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 142884, while the sum is 43.

The square root of 97620937 is about 9880.3308142997. The cubic root of 97620937 is about 460.4484237777.

The spelling of 97620937 in words is "ninety-seven million, six hundred twenty thousand, nine hundred thirty-seven".