97397477 has 4 divisors (see below), whose sum is σ = 102523680. Its totient is φ = 92271276.

The previous prime is 97397473. The next prime is 97397501. The reversal of 97397477 is 77479379.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 77479379 = 1319 ⋅58741.

It is a cyclic number.

It is not a de Polignac number, because 97397477 - 2² = 97397473 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97397473) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2563073 + ... + 2563110.

It is an arithmetic number, because the mean of its divisors is an integer number (25630920).

Almost surely, 2^97397477 is an apocalyptic number.

It is an amenable number.

97397477 is a deficient number, since it is larger than the sum of its proper divisors (5126203).

97397477 is a wasteful number, since it uses less digits than its factorization.

97397477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5126202.

The product of its digits is 2333772, while the sum is 53.

The square root of 97397477 is about 9869.0160097144. The cubic root of 97397477 is about 460.0968242937.

The spelling of 97397477 in words is "ninety-seven million, three hundred ninety-seven thousand, four hundred seventy-seven".