97655807 has 2 divisors, whose sum is σ = 97655808. Its totient is φ = 97655806.

The previous prime is 97655791. The next prime is 97655813. The reversal of 97655807 is 70855679.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (70855679) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 97655807 - 2⁴ = 97655791 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 (97655897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48827903 + 48827904.

It is an arithmetic number, because the mean of its divisors is an integer number (48827904).

Almost surely, 2^97655807 is an apocalyptic number.

97655807 is a deficient number, since it is larger than the sum of its proper divisors (1).

97655807 is an equidigital number, since it uses as much as digits as its factorization.

97655807 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 529200, while the sum is 47.

The square root of 97655807 is about 9882.0952737767. The cubic root of 97655807 is about 460.5032409979.

The spelling of 97655807 in words is "ninety-seven million, six hundred fifty-five thousand, eight hundred seven".