748731 has 16 divisors (see below), whose sum is σ = 1080864. Its totient is φ = 459264.

The previous prime is 748729. The next prime is 748763. The reversal of 748731 is 137847.

It is a happy number.

It is not a de Polignac number, because 748731 - 2¹ = 748729 is a prime.

It is a super-2 number, since 2×748731² = 1121196220722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (748711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2565 + ... + 2841.

It is an arithmetic number, because the mean of its divisors is an integer number (67554).

2⁷⁴⁸⁷³¹ is an apocalyptic number.

748731 is a deficient number, since it is larger than the sum of its proper divisors (332133).

748731 is a wasteful number, since it uses less digits than its factorization.

748731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 350.

The product of its digits is 4704, while the sum is 30.

The square root of 748731 is about 865.2924361163. The cubic root of 748731 is about 90.8047579128.

The spelling of 748731 in words is "seven hundred forty-eight thousand, seven hundred thirty-one".