8312725 has 6 divisors (see below), whose sum is σ = 10307810. Its totient is φ = 6650160.

The previous prime is 8312713. The next prime is 8312737. The reversal of 8312725 is 5272138.

It is an interprime number because it is at equal distance from previous prime (8312713) and next prime (8312737).

It can be written as a sum of positive squares in 3 ways, for example, as 343396 + 7969329 = 586^2 + 2823^2 .

It is not a de Polignac number, because 8312725 - 2⁵ = 8312693 is a prime.

8312725 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 8312693 and 8312702.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 166230 + ... + 166279.

Almost surely, 2^8312725 is an apocalyptic number.

It is an amenable number.

8312725 is a deficient number, since it is larger than the sum of its proper divisors (1995085).

8312725 is a wasteful number, since it uses less digits than its factorization.

8312725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332519 (or 332514 counting only the distinct ones).

The product of its digits is 3360, while the sum is 28.

The square root of 8312725 is about 2883.1796683523. The cubic root of 8312725 is about 202.5728031677.

The spelling of 8312725 in words is "eight million, three hundred twelve thousand, seven hundred twenty-five".