97532280 has 48 divisors (see below), whose sum is σ = 316981080. Its totient is φ = 26008512.

The previous prime is 97532273. The next prime is 97532297. The reversal of 97532280 is 8223579.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 135102 + ... + 135821.

Almost surely, 2^97532280 is an apocalyptic number.

97532280 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

97532280 is an abundant number, since it is smaller than the sum of its proper divisors (219448800).

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

97532280 is a wasteful number, since it uses less digits than its factorization.

97532280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270940 (or 270933 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 97532280 is about 9875.8432551352. The cubic root of 97532280 is about 460.3089921446.

The spelling of 97532280 in words is "ninety-seven million, five hundred thirty-two thousand, two hundred eighty".