97916490 has 48 divisors (see below), whose sum is σ = 290953728. Its totient is φ = 22380768.

The previous prime is 97916479. The next prime is 97916491. The reversal of 97916490 is 9461979.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (97916491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 77082 + ... + 78341.

It is an arithmetic number, because the mean of its divisors is an integer number (6061536).

Almost surely, 2^97916490 is an apocalyptic number.

97916490 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

97916490 is an abundant number, since it is smaller than the sum of its proper divisors (193037238).

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

97916490 is a wasteful number, since it uses less digits than its factorization.

97916490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155443 (or 155440 counting only the distinct ones).

The product of its (nonzero) digits is 122472, while the sum is 45.

The square root of 97916490 is about 9895.2761457172. The cubic root of 97916490 is about 460.9126336447.

The spelling of 97916490 in words is "ninety-seven million, nine hundred sixteen thousand, four hundred ninety".