746431531 has 4 divisors (see below), whose sum is σ = 746582632. Its totient is φ = 746280432.

The previous prime is 746431513. The next prime is 746431541. The reversal of 746431531 is 135134647.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 135134647 = 41 ⋅3295967.

It is a cyclic number.

It is not a de Polignac number, because 746431531 - 2⁷ = 746431403 is a prime.

It is a super-2 number, since 2×746431531² = 1114320060942007922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (746431501) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67881 + ... + 78106.

It is an arithmetic number, because the mean of its divisors is an integer number (186645658).

Almost surely, 2^746431531 is an apocalyptic number.

746431531 is a deficient number, since it is larger than the sum of its proper divisors (151101).

746431531 is a wasteful number, since it uses less digits than its factorization.

746431531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151100.

The product of its digits is 30240, while the sum is 34.

The square root of 746431531 is about 27320.8991616308. The cubic root of 746431531 is about 907.1170408946.

The spelling of 746431531 in words is "seven hundred forty-six million, four hundred thirty-one thousand, five hundred thirty-one".