97152390 has 24 divisors (see below), whose sum is σ = 252596448. Its totient is φ = 25907280.

The previous prime is 97152371. The next prime is 97152421. The reversal of 97152390 is 9325179.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 539646 + ... + 539825.

It is an arithmetic number, because the mean of its divisors is an integer number (10524852).

Almost surely, 2^97152390 is an apocalyptic number.

97152390 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

97152390 is an abundant number, since it is smaller than the sum of its proper divisors (155444058).

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

97152390 is a wasteful number, since it uses less digits than its factorization.

97152390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1079484 (or 1079481 counting only the distinct ones).

The product of its (nonzero) digits is 17010, while the sum is 36.

The square root of 97152390 is about 9856.5911957431. The cubic root of 97152390 is about 459.7105772335.

It can be divided in two parts, 971 and 52390, that added together give a square (53361 = 231²).

The spelling of 97152390 in words is "ninety-seven million, one hundred fifty-two thousand, three hundred ninety".