744669 has 12 divisors (see below), whose sum is σ = 1087996. Its totient is φ = 490752.

The previous prime is 744661. The next prime is 744677. The reversal of 744669 is 966447.

It is an interprime number because it is at equal distance from previous prime (744661) and next prime (744677).

It can be written as a sum of positive squares in 2 ways, for example, as 164025 + 580644 = 405^2 + 762^2 .

It is not a de Polignac number, because 744669 - 2³ = 744661 is a prime.

It is a super-2 number, since 2×744669² = 1109063839122, which contains 22 as substring.

It is a Duffinian number.

It is a nialpdrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (744661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 447 + ... + 1299.

2⁷⁴⁴⁶⁶⁹ is an apocalyptic number.

It is an amenable number.

744669 is a deficient number, since it is larger than the sum of its proper divisors (343327).

744669 is a wasteful number, since it uses less digits than its factorization.

744669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 956 (or 953 counting only the distinct ones).

The product of its digits is 36288, while the sum is 36.

The square root of 744669 is about 862.9420606275. The cubic root of 744669 is about 90.6402493562.

The spelling of 744669 in words is "seven hundred forty-four thousand, six hundred sixty-nine".