97537961 has 2 divisors, whose sum is σ = 97537962. Its totient is φ = 97537960.

The previous prime is 97537943. The next prime is 97537969. The reversal of 97537961 is 16973579.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 57456400 + 40081561 = 7580^2 + 6331^2 .

It is a cyclic number.

It is not a de Polignac number, because 97537961 - 2²⁶ = 30429097 is a prime.

It is not a weakly prime, because it can be changed into another prime (97537969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48768980 + 48768981.

It is an arithmetic number, because the mean of its divisors is an integer number (48768981).

Almost surely, 2^97537961 is an apocalyptic number.

It is an amenable number.

97537961 is a deficient number, since it is larger than the sum of its proper divisors (1).

97537961 is an equidigital number, since it uses as much as digits as its factorization.

97537961 is an evil number, because the sum of its binary digits is even.

The product of its digits is 357210, while the sum is 47.

The square root of 97537961 is about 9876.1308719559. The cubic root of 97537961 is about 460.3179292357.

The spelling of 97537961 in words is "ninety-seven million, five hundred thirty-seven thousand, nine hundred sixty-one".