97655477 has 2 divisors, whose sum is σ = 97655478. Its totient is φ = 97655476.

The previous prime is 97655471. The next prime is 97655483. The reversal of 97655477 is 77455679.

It is a balanced prime because it is at equal distance from previous prime (97655471) and next prime (97655483).

It can be written as a sum of positive squares in only one way, i.e., 97634161 + 21316 = 9881^2 + 146^2 .

It is a cyclic number.

It is not a de Polignac number, because 97655477 - 2⁸ = 97655221 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97655471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48827738 + 48827739.

It is an arithmetic number, because the mean of its divisors is an integer number (48827739).

Almost surely, 2^97655477 is an apocalyptic number.

It is an amenable number.

97655477 is a deficient number, since it is larger than the sum of its proper divisors (1).

97655477 is an equidigital number, since it uses as much as digits as its factorization.

97655477 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1852200, while the sum is 50.

The square root of 97655477 is about 9882.0785768987. The cubic root of 97655477 is about 460.5027222841.

The spelling of 97655477 in words is "ninety-seven million, six hundred fifty-five thousand, four hundred seventy-seven".