97661582 has 8 divisors (see below), whose sum is σ = 149609376. Its totient is φ = 47791792.

The previous prime is 97661573. The next prime is 97661591. The reversal of 97661582 is 28516679.

It is an interprime number because it is at equal distance from previous prime (97661573) and next prime (97661591).

It is a sphenic number, since it is the product of 3 distinct primes.

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 3 ways as a sum of consecutive naturals, for example, 519383 + ... + 519570.

It is an arithmetic number, because the mean of its divisors is an integer number (18701172).

Almost surely, 2^97661582 is an apocalyptic number.

97661582 is a deficient number, since it is larger than the sum of its proper divisors (51947794).

97661582 is a wasteful number, since it uses less digits than its factorization.

97661582 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1039002.

The product of its digits is 181440, while the sum is 44.

The square root of 97661582 is about 9882.3874645756. The cubic root of 97661582 is about 460.5123183001.

The spelling of 97661582 in words is "ninety-seven million, six hundred sixty-one thousand, five hundred eighty-two".