749565 has 12 divisors (see below), whose sum is σ = 1299324. Its totient is φ = 399744.

The previous prime is 749557. The next prime is 749587. The reversal of 749565 is 565947.

It can be written as a sum of positive squares in 2 ways, for example, as 580644 + 168921 = 762^2 + 411^2 .

It is not a de Polignac number, because 749565 - 2³ = 749557 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8284 + ... + 8373.

It is an arithmetic number, because the mean of its divisors is an integer number (108277).

2⁷⁴⁹⁵⁶⁵ is an apocalyptic number.

It is an amenable number.

749565 is a deficient number, since it is larger than the sum of its proper divisors (549759).

749565 is a wasteful number, since it uses less digits than its factorization.

749565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16668 (or 16665 counting only the distinct ones).

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

The square root of 749565 is about 865.7742199904. The cubic root of 749565 is about 90.8384607455.

The spelling of 749565 in words is "seven hundred forty-nine thousand, five hundred sixty-five".