79477225 has 9 divisors (see below), whose sum is σ = 98607063. Its totient is φ = 63546120.

The previous prime is 79477219. The next prime is 79477243. The reversal of 79477225 is 52277497.

The square root of 79477225 is 8915.

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

It can be written as a sum of positive squares in only one way, i.e., 28611801 + 50865424 = 5349^2 + 7132^2 .

It is not a de Polignac number, because 79477225 - 2¹¹ = 79475177 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 43684 + ... + 45466.

Almost surely, 2^79477225 is an apocalyptic number.

79477225 is the 8915-th square number.

79477225 is the 4458-th centered octagonal number.

It is an amenable number.

79477225 is a deficient number, since it is larger than the sum of its proper divisors (19129838).

79477225 is an frugal number, since it uses more digits than its factorization.

79477225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3576 (or 1788 counting only the distinct ones).

The product of its digits is 246960, while the sum is 43.

The cubic root of 79477225 is about 429.9463156343.

The spelling of 79477225 in words is "seventy-nine million, four hundred seventy-seven thousand, two hundred twenty-five".