97831480 has 32 divisors (see below), whose sum is σ = 220566240. Its totient is φ = 39053440.

The previous prime is 97831477. The next prime is 97831483. The reversal of 97831480 is 8413879.

It is an interprime number because it is at equal distance from previous prime (97831477) and next prime (97831483).

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97831483) 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 7 ways as a sum of consecutive naturals, for example, 20085 + ... + 24475.

It is an arithmetic number, because the mean of its divisors is an integer number (6892695).

Almost surely, 2^97831480 is an apocalyptic number.

It is an amenable number.

97831480 is an abundant number, since it is smaller than the sum of its proper divisors (122734760).

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

97831480 is a wasteful number, since it uses less digits than its factorization.

97831480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4959 (or 4955 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 40.

The square root of 97831480 is about 9890.9797290258. The cubic root of 97831480 is about 460.7792086290.

The spelling of 97831480 in words is "ninety-seven million, eight hundred thirty-one thousand, four hundred eighty".