8725431 has 36 divisors (see below), whose sum is σ = 14099064. Its totient is φ = 4767840.

The previous prime is 8725429. The next prime is 8725459. The reversal of 8725431 is 1345278.

8725431 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 8725431 - 2¹ = 8725429 is a prime.

It is a super-2 number, since 2×8725431² = 152266292271522, which contains 22 as substring.

Its product of digits (6720) is a multiple of the sum of its prime divisors (70).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8725421) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 202896 + ... + 202938.

Almost surely, 2^8725431 is an apocalyptic number.

8725431 is a deficient number, since it is larger than the sum of its proper divisors (5373633).

8725431 is a wasteful number, since it uses less digits than its factorization.

8725431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124 (or 70 counting only the distinct ones).

The product of its digits is 6720, while the sum is 30.

The square root of 8725431 is about 2953.8840532424. The cubic root of 8725431 is about 205.8712158890.

The spelling of 8725431 in words is "eight million, seven hundred twenty-five thousand, four hundred thirty-one".