744904 has 8 divisors (see below), whose sum is σ = 1396710. Its totient is φ = 372448.

The previous prime is 744893. The next prime is 744911. The reversal of 744904 is 409447.

It can be written as a sum of positive squares in only one way, i.e., 656100 + 88804 = 810^2 + 298^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an Ulam number.

It is a nialpdrome in base 15.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 46549 + ... + 46564.

2⁷⁴⁴⁹⁰⁴ is an apocalyptic number.

It is an amenable number.

744904 is a deficient number, since it is larger than the sum of its proper divisors (651806).

744904 is a wasteful number, since it uses less digits than its factorization.

744904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93119 (or 93115 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 744904 is about 863.0782119831. The cubic root of 744904 is about 90.6497829961.

The spelling of 744904 in words is "seven hundred forty-four thousand, nine hundred four".