97976388 has 96 divisors (see below), whose sum is σ = 252887040. Its totient is φ = 29410560.

The previous prime is 97976387. The next prime is 97976419. The reversal of 97976388 is 88367979.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is not an unprimeable number, because it can be changed into a prime (97976387) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 439245 + ... + 439467.

It is an arithmetic number, because the mean of its divisors is an integer number (2634240).

Almost surely, 2^97976388 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 97976388, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (126443520).

97976388 is an abundant number, since it is smaller than the sum of its proper divisors (154910652).

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

97976388 is a wasteful number, since it uses less digits than its factorization.

97976388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 337 (or 335 counting only the distinct ones).

The product of its digits is 4572288, while the sum is 57.

The square root of 97976388 is about 9898.3022786739. The cubic root of 97976388 is about 461.0065984691.

The spelling of 97976388 in words is "ninety-seven million, nine hundred seventy-six thousand, three hundred eighty-eight".