749685 has 32 divisors (see below), whose sum is σ = 1306368. Its totient is φ = 366080.

The previous prime is 749677. The next prime is 749701. The reversal of 749685 is 586947.

749685 = T₁₄₁ + T₁₄₂ + ... + T₁₉₃.

It is not a de Polignac number, because 749685 - 2³ = 749677 is a prime.

It is a congruent number.

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 in 31 ways as a sum of consecutive naturals, for example, 14119 + ... + 14171.

It is an arithmetic number, because the mean of its divisors is an integer number (40824).

2⁷⁴⁹⁶⁸⁵ is an apocalyptic number.

It is an amenable number.

749685 is a deficient number, since it is larger than the sum of its proper divisors (556683).

749685 is a wasteful number, since it uses less digits than its factorization.

749685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125.

The product of its digits is 60480, while the sum is 39.

The square root of 749685 is about 865.8435193498. The cubic root of 749685 is about 90.8433080163.

The spelling of 749685 in words is "seven hundred forty-nine thousand, six hundred eighty-five".