97397478 has 20 divisors (see below), whose sum is σ = 218242860. Its totient is φ = 32465772.

The previous prime is 97397473. The next prime is 97397501. The reversal of 97397478 is 87479379.

It is a Harshad number since it is a multiple of its sum of digits (54).

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 9 ways as a sum of consecutive naturals, for example, 300448 + ... + 300771.

It is an arithmetic number, because the mean of its divisors is an integer number (10912143).

Almost surely, 2^97397478 is an apocalyptic number.

97397478 is an abundant number, since it is smaller than the sum of its proper divisors (120845382).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

97397478 is a wasteful number, since it uses less digits than its factorization.

97397478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 601233 (or 601224 counting only the distinct ones).

The product of its digits is 2667168, while the sum is 54.

The square root of 97397478 is about 9869.0160603781. The cubic root of 97397478 is about 460.0968258684.

The spelling of 97397478 in words is "ninety-seven million, three hundred ninety-seven thousand, four hundred seventy-eight".