79548561 has 15 divisors (see below), whose sum is σ = 118951833. Its totient is φ = 52978860.

The previous prime is 79548541. The next prime is 79548577. The reversal of 79548561 is 16584597.

The square root of 79548561 is 8919.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 79548561 - 2⁵ = 79548529 is a prime.

It is not an unprimeable number, because it can be changed into a prime (79548541) 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 14 ways as a sum of consecutive naturals, for example, 79776 + ... + 80766.

Almost surely, 2^79548561 is an apocalyptic number.

79548561 is the 8919-th square number.

79548561 is the 4460-th centered octagonal number.

It is an amenable number.

79548561 is a deficient number, since it is larger than the sum of its proper divisors (39403272).

79548561 is an frugal number, since it uses more digits than its factorization.

79548561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1994 (or 994 counting only the distinct ones).

The product of its digits is 302400, while the sum is 45.

The cubic root of 79548561 is about 430.0749121333.

The spelling of 79548561 in words is "seventy-nine million, five hundred forty-eight thousand, five hundred sixty-one".