744687 has 8 divisors (see below), whose sum is σ = 1103280. Its totient is φ = 496440.

The previous prime is 744677. The next prime is 744701. The reversal of 744687 is 786447.

It is a happy number.

It is not a de Polignac number, because 744687 - 2⁷ = 744559 is a prime.

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (744607) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13764 + ... + 13817.

It is an arithmetic number, because the mean of its divisors is an integer number (137910).

2⁷⁴⁴⁶⁸⁷ is an apocalyptic number.

744687 is a deficient number, since it is larger than the sum of its proper divisors (358593).

744687 is a wasteful number, since it uses less digits than its factorization.

744687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27590 (or 27584 counting only the distinct ones).

The product of its digits is 37632, while the sum is 36.

The square root of 744687 is about 862.9524900016. The cubic root of 744687 is about 90.6409796634.

It can be divided in two parts, 744 and 687, that added together give a triangular number (1431 = T₅₃).

The spelling of 744687 in words is "seven hundred forty-four thousand, six hundred eighty-seven".