726604131 has 16 divisors (see below), whose sum is σ = 1071767808. Its totient is φ = 434162400.

The previous prime is 726604129. The next prime is 726604169. The reversal of 726604131 is 131406627.

It is not a de Polignac number, because 726604131 - 2¹ = 726604129 is a prime.

It is a super-2 number, since 2×726604131² = 1055907126372530322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (726604111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 152716 + ... + 157401.

It is an arithmetic number, because the mean of its divisors is an integer number (66985488).

Almost surely, 2^726604131 is an apocalyptic number.

726604131 is a gapful number since it is divisible by the number (71) formed by its first and last digit.

726604131 is a deficient number, since it is larger than the sum of its proper divisors (345163677).

726604131 is a wasteful number, since it uses less digits than its factorization.

726604131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310202.

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 726604131 is about 26955.5955415569. The cubic root of 726604131 is about 899.0129635849.

The spelling of 726604131 in words is "seven hundred twenty-six million, six hundred four thousand, one hundred thirty-one".