749992 has 16 divisors (see below), whose sum is σ = 1415700. Its totient is φ = 372480.

The previous prime is 749971. The next prime is 749993. The reversal of 749992 is 299947.

749992 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 749956 + 36 = 866^2 + 6^2 .

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (749993) 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, 1734 + ... + 2122.

2⁷⁴⁹⁹⁹² is an apocalyptic number.

It is an amenable number.

749992 is a deficient number, since it is larger than the sum of its proper divisors (665708).

749992 is a wasteful number, since it uses less digits than its factorization.

749992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 636 (or 632 counting only the distinct ones).

The product of its digits is 40824, while the sum is 40.

The square root of 749992 is about 866.0207849700. The cubic root of 749992 is about 90.8557065968.

The spelling of 749992 in words is "seven hundred forty-nine thousand, nine hundred ninety-two".