7625631 has 32 divisors (see below), whose sum is σ = 11854080. Its totient is φ = 4320000.

The previous prime is 7625621. The next prime is 7625677. The reversal of 7625631 is 1365267.

It is not a de Polignac number, because 7625631 - 2⁵ = 7625599 is a prime.

It is a super-2 number, since 2×7625631² = 116300496296322, which contains 22 as substring.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

7625631 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7625621) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 30256 + ... + 30506.

It is an arithmetic number, because the mean of its divisors is an integer number (370440).

Almost surely, 2^7625631 is an apocalyptic number.

7625631 is a deficient number, since it is larger than the sum of its proper divisors (4228449).

7625631 is a wasteful number, since it uses less digits than its factorization.

7625631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327.

The product of its digits is 7560, while the sum is 30.

The square root of 7625631 is about 2761.4545080446. The cubic root of 7625631 is about 196.8302883599.

It can be divided in two parts, 7625 and 631, that added together give a triangular number (8256 = T₁₂₈).

The spelling of 7625631 in words is "seven million, six hundred twenty-five thousand, six hundred thirty-one".