531307377 has 16 divisors (see below), whose sum is σ = 800028160. Its totient is φ = 348397200.

The previous prime is 531307373. The next prime is 531307391. The reversal of 531307377 is 773703135.

It is not a de Polignac number, because 531307377 - 2² = 531307373 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (531307373) 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, 159649 + ... + 162942.

It is an arithmetic number, because the mean of its divisors is an integer number (50001760).

Almost surely, 2^531307377 is an apocalyptic number.

It is an amenable number.

531307377 is a deficient number, since it is larger than the sum of its proper divisors (268720783).

531307377 is a wasteful number, since it uses less digits than its factorization.

531307377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 322661 (or 322655 counting only the distinct ones).

The product of its (nonzero) digits is 46305, while the sum is 36.

The square root of 531307377 is about 23050.1057915143. The cubic root of 531307377 is about 809.9321067923.

The spelling of 531307377 in words is "five hundred thirty-one million, three hundred seven thousand, three hundred seventy-seven".