745659 has 8 divisors (see below), whose sum is σ = 1104720. Its totient is φ = 497088.

The previous prime is 745649. The next prime is 745673. The reversal of 745659 is 956547.

It is not a de Polignac number, because 745659 - 2⁷ = 745531 is a prime.

It is not an unprimeable number, because it can be changed into a prime (745609) by changing a digit.

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, 13782 + ... + 13835.

It is an arithmetic number, because the mean of its divisors is an integer number (138090).

2⁷⁴⁵⁶⁵⁹ is an apocalyptic number.

745659 is a deficient number, since it is larger than the sum of its proper divisors (359061).

745659 is a wasteful number, since it uses less digits than its factorization.

745659 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27626 (or 27620 counting only the distinct ones).

The product of its digits is 37800, while the sum is 36.

The square root of 745659 is about 863.5154891489. The cubic root of 745659 is about 90.6803987875.

The spelling of 745659 in words is "seven hundred forty-five thousand, six hundred fifty-nine".