97397255 has 4 divisors (see below), whose sum is σ = 116876712. Its totient is φ = 77917800.

The previous prime is 97397231. The next prime is 97397269. The reversal of 97397255 is 55279379.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 97397255 - 2⁶ = 97397191 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9739721 + ... + 9739730.

It is an arithmetic number, because the mean of its divisors is an integer number (29219178).

Almost surely, 2^97397255 is an apocalyptic number.

97397255 is a deficient number, since it is larger than the sum of its proper divisors (19479457).

97397255 is a wasteful number, since it uses less digits than its factorization.

97397255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19479456.

The product of its digits is 595350, while the sum is 47.

The square root of 97397255 is about 9869.0047623861. The cubic root of 97397255 is about 460.0964747242.

The spelling of 97397255 in words is "ninety-seven million, three hundred ninety-seven thousand, two hundred fifty-five".