537820731 has 24 divisors (see below), whose sum is σ = 889855200. Its totient is φ = 306625536.

The previous prime is 537820727. The next prime is 537820741. The reversal of 537820731 is 137028735.

537820731 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 537820731 - 2² = 537820727 is a prime.

It is a super-2 number, since 2×537820731² = 578502277386748722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (537820741) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18781 + ... + 37793.

It is an arithmetic number, because the mean of its divisors is an integer number (37077300).

Almost surely, 2^537820731 is an apocalyptic number.

537820731 is a deficient number, since it is larger than the sum of its proper divisors (352034469).

537820731 is a wasteful number, since it uses less digits than its factorization.

537820731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19475 (or 19472 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 36.

The square root of 537820731 is about 23190.9622698154. The cubic root of 537820731 is about 813.2283550383.

The spelling of 537820731 in words is "five hundred thirty-seven million, eight hundred twenty thousand, seven hundred thirty-one".