97728876 has 96 divisors (see below), whose sum is σ = 291271680. Its totient is φ = 27758592.

The previous prime is 97728847. The next prime is 97728887. The reversal of 97728876 is 67882779.

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

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 194041 + ... + 194543.

It is an arithmetic number, because the mean of its divisors is an integer number (3034080).

Almost surely, 2^97728876 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 97728876, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (145635840).

97728876 is an abundant number, since it is smaller than the sum of its proper divisors (193542804).

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

97728876 is a wasteful number, since it uses less digits than its factorization.

97728876 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 780 (or 772 counting only the distinct ones).

The product of its digits is 2370816, while the sum is 54.

The square root of 97728876 is about 9885.7916223234. The cubic root of 97728876 is about 460.6180664704.

The spelling of 97728876 in words is "ninety-seven million, seven hundred twenty-eight thousand, eight hundred seventy-six".