749690 has 16 divisors (see below), whose sum is σ = 1372680. Its totient is φ = 294720.

The previous prime is 749677. The next prime is 749701. The reversal of 749690 is 96947.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 619369 + 130321 = 787^2 + 361^2 .

It is a super-2 number, since 2×749690² = 1124070192200, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 749690.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 749690.

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 7 ways as a sum of consecutive naturals, for example, 5 + ... + 1224.

2⁷⁴⁹⁶⁹⁰ is an apocalyptic number.

749690 is a deficient number, since it is larger than the sum of its proper divisors (622990).

749690 is a wasteful number, since it uses less digits than its factorization.

749690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1297.

The product of its (nonzero) digits is 13608, while the sum is 35.

The square root of 749690 is about 865.8464067027. The cubic root of 749690 is about 90.8435099747.

The spelling of 749690 in words is "seven hundred forty-nine thousand, six hundred ninety".