97786980 has 48 divisors (see below), whose sum is σ = 304227840. Its totient is φ = 26076384.

The previous prime is 97786963. The next prime is 97786981. The reversal of 97786980 is 8968779.

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

It is not an unprimeable number, because it can be changed into a prime (97786981) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 90004 + ... + 91083.

It is an arithmetic number, because the mean of its divisors is an integer number (6338080).

Almost surely, 2^97786980 is an apocalyptic number.

97786980 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

97786980 is an abundant number, since it is smaller than the sum of its proper divisors (206440860).

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

97786980 is a wasteful number, since it uses less digits than its factorization.

97786980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181105 (or 181097 counting only the distinct ones).

The product of its (nonzero) digits is 1524096, while the sum is 54.

The square root of 97786980 is about 9888.7299487851. The cubic root of 97786980 is about 460.7093341042.

The spelling of 97786980 in words is "ninety-seven million, seven hundred eighty-six thousand, nine hundred eighty".