749684 has 18 divisors (see below), whose sum is σ = 1421910. Its totient is φ = 345696.

The previous prime is 749677. The next prime is 749701. The reversal of 749684 is 486947.

It is a happy number.

749684 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 3 ways, for example, as 77284 + 672400 = 278^2 + 820^2 .

It is a super-3 number, since 3×749684³ = 1264025923933336512, which contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 122 + ... + 1230.

It is an arithmetic number, because the mean of its divisors is an integer number (78995).

2⁷⁴⁹⁶⁸⁴ is an apocalyptic number.

It is an amenable number.

749684 is a deficient number, since it is larger than the sum of its proper divisors (672226).

749684 is a wasteful number, since it uses less digits than its factorization.

749684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1139 (or 1124 counting only the distinct ones).

The product of its digits is 48384, while the sum is 38.

The square root of 749684 is about 865.8429418780. The cubic root of 749684 is about 90.8432676245.

The spelling of 749684 in words is "seven hundred forty-nine thousand, six hundred eighty-four".