745569 has 24 divisors (see below), whose sum is σ = 1246752. Its totient is φ = 424320.

The previous prime is 745567. The next prime is 745573. The reversal of 745569 is 965547.

It is not a de Polignac number, because 745569 - 2¹ = 745567 is a prime.

It is a super-2 number, since 2×745569² = 1111746267522, which contains 22 as substring.

It is a plaindrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (745567) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1462 + ... + 1904.

It is an arithmetic number, because the mean of its divisors is an integer number (51948).

2⁷⁴⁵⁵⁶⁹ is an apocalyptic number.

It is an amenable number.

745569 is a deficient number, since it is larger than the sum of its proper divisors (501183).

745569 is a wasteful number, since it uses less digits than its factorization.

745569 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 477 (or 474 counting only the distinct ones).

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

The square root of 745569 is about 863.4633750195. The cubic root of 745569 is about 90.6767503082.

The spelling of 745569 in words is "seven hundred forty-five thousand, five hundred sixty-nine".