8479213725 has 24 divisors (see below), whose sum is σ = 14025745152. Its totient is φ = 4520060800.

The previous prime is 8479213703. The next prime is 8479213751. The reversal of 8479213725 is 5273129748.

It is a happy number.

It is not a de Polignac number, because 8479213725 - 2⁵ = 8479213693 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 135220 + ... + 187730.

It is an arithmetic number, because the mean of its divisors is an integer number (584406048).

Almost surely, 2^8479213725 is an apocalyptic number.

It is an amenable number.

8479213725 is a deficient number, since it is larger than the sum of its proper divisors (5546531427).

8479213725 is a wasteful number, since it uses less digits than its factorization.

8479213725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54677 (or 54672 counting only the distinct ones).

The product of its digits is 846720, while the sum is 48.

The square root of 8479213725 is about 92082.6461663651. The cubic root of 8479213725 is about 2039.1626164756.

The spelling of 8479213725 in words is "eight billion, four hundred seventy-nine million, two hundred thirteen thousand, seven hundred twenty-five".