745604 has 12 divisors (see below), whose sum is σ = 1329804. Its totient is φ = 365664.

The previous prime is 745601. The next prime is 745609. The reversal of 745604 is 406547.

It can be written as a sum of positive squares in 2 ways, for example, as 643204 + 102400 = 802^2 + 320^2 .

It is a hoax number, since the sum of its digits (26) coincides with the sum of the digits of its distinct prime factors.

It is a plaindrome in base 9.

It is not an unprimeable number, because it can be changed into a prime (745601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1547 + ... + 1970.

It is an arithmetic number, because the mean of its divisors is an integer number (110817).

2⁷⁴⁵⁶⁰⁴ is an apocalyptic number.

It is an amenable number.

745604 is a deficient number, since it is larger than the sum of its proper divisors (584200).

745604 is a wasteful number, since it uses less digits than its factorization.

745604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3574 (or 3572 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 745604 is about 863.4836419991. The cubic root of 745604 is about 90.6781691962.

The spelling of 745604 in words is "seven hundred forty-five thousand, six hundred four".