7862725 has 18 divisors (see below), whose sum is σ = 10563126. Its totient is φ = 5803200.

The previous prime is 7862719. The next prime is 7862731. The reversal of 7862725 is 5272687.

It is an interprime number because it is at equal distance from previous prime (7862719) and next prime (7862731).

It can be written as a sum of positive squares in 9 ways, for example, as 7306209 + 556516 = 2703^2 + 746^2 .

It is not a de Polignac number, because 7862725 - 2⁷ = 7862597 is a prime.

It is a d-powerful number, because it can be written as 7 + 8³ + 6³ + 2⁵ + 7⁸ + 2²¹ + 5 .

It is a Duffinian number.

7862725 is a lucky number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 3295 + ... + 5155.

Almost surely, 2^7862725 is an apocalyptic number.

It is an amenable number.

7862725 is a deficient number, since it is larger than the sum of its proper divisors (2700401).

7862725 is a wasteful number, since it uses less digits than its factorization.

7862725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1897 (or 1879 counting only the distinct ones).

The product of its digits is 47040, while the sum is 37.

The square root of 7862725 is about 2804.0550993160. The cubic root of 7862725 is about 198.8494353644.

The spelling of 7862725 in words is "seven million, eight hundred sixty-two thousand, seven hundred twenty-five".