749669 has 4 divisors (see below), whose sum is σ = 752844. Its totient is φ = 746496.

The previous prime is 749659. The next prime is 749677. The reversal of 749669 is 966947.

749669 is nontrivially palindromic in base 15.

749669 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 966947 = 29 ⋅33343.

It can be written as a sum of positive squares in 2 ways, for example, as 744769 + 4900 = 863^2 + 70^2 .

It is a cyclic number.

It is not a de Polignac number, because 749669 - 2⁴ = 749653 is a prime.

It is a super-2 number, since 2×749669² = 1124007219122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 749669.

It is not an unprimeable number, because it can be changed into a prime (749659) 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, 1202 + ... + 1715.

It is an arithmetic number, because the mean of its divisors is an integer number (188211).

2⁷⁴⁹⁶⁶⁹ is an apocalyptic number.

It is an amenable number.

749669 is a deficient number, since it is larger than the sum of its proper divisors (3175).

749669 is a wasteful number, since it uses less digits than its factorization.

749669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3174.

The product of its digits is 81648, while the sum is 41.

The square root of 749669 is about 865.8342797557. The cubic root of 749669 is about 90.8426617434.

The spelling of 749669 in words is "seven hundred forty-nine thousand, six hundred sixty-nine".