747312 has 20 divisors (see below), whose sum is σ = 1930680. Its totient is φ = 249088.

The previous prime is 747287. The next prime is 747319. The reversal of 747312 is 213747.

747312 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (747319) 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, 7737 + ... + 7832.

It is an arithmetic number, because the mean of its divisors is an integer number (96534).

2⁷⁴⁷³¹² is an apocalyptic number.

It is an amenable number.

747312 is an abundant number, since it is smaller than the sum of its proper divisors (1183368).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

747312 is a wasteful number, since it uses less digits than its factorization.

747312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15580 (or 15574 counting only the distinct ones).

The product of its digits is 1176, while the sum is 24.

The square root of 747312 is about 864.4720932454. The cubic root of 747312 is about 90.7473570404.

It can be divided in two parts, 7473 and 12, that multiplied together give a triangular number (89676 = T₄₂₃).

The spelling of 747312 in words is "seven hundred forty-seven thousand, three hundred twelve", and thus it is an iban number.