725842831 has 6 divisors (see below), whose sum is σ = 844347840. Its totient is φ = 622150956.

The previous prime is 725842813. The next prime is 725842837. The reversal of 725842831 is 138248527.

It is a happy number.

It is not a de Polignac number, because 725842831 - 2¹¹ = 725840783 is a prime.

It is a super-2 number, since 2×725842831² = 1053695630628189122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (725842837) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7406511 + ... + 7406608.

It is an arithmetic number, because the mean of its divisors is an integer number (140724640).

Almost surely, 2^725842831 is an apocalyptic number.

725842831 is a deficient number, since it is larger than the sum of its proper divisors (118505009).

725842831 is a wasteful number, since it uses less digits than its factorization.

725842831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14813133 (or 14813126 counting only the distinct ones).

The product of its digits is 107520, while the sum is 40.

The square root of 725842831 is about 26941.4704684061. The cubic root of 725842831 is about 898.6988733705.

The spelling of 725842831 in words is "seven hundred twenty-five million, eight hundred forty-two thousand, eight hundred thirty-one".