75752865 has 12 divisors (see below), whose sum is σ = 131305044. Its totient is φ = 40401504.

The previous prime is 75752797. The next prime is 75752881. The reversal of 75752865 is 56825757.

It can be written as a sum of positive squares in 2 ways, for example, as 49956624 + 25796241 = 7068^2 + 5079^2 .

It is not a de Polignac number, because 75752865 - 2⁷ = 75752737 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 1683397 = 75752865 / (7 + 5 + 7 + 5 + 2 + 8 + 6 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 75752865.

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, 841654 + ... + 841743.

It is an arithmetic number, because the mean of its divisors is an integer number (10942087).

Almost surely, 2^75752865 is an apocalyptic number.

It is an amenable number.

75752865 is a deficient number, since it is larger than the sum of its proper divisors (55552179).

75752865 is a wasteful number, since it uses less digits than its factorization.

75752865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1683408 (or 1683405 counting only the distinct ones).

The product of its digits is 588000, while the sum is 45.

The square root of 75752865 is about 8703.6121811579. The cubic root of 75752865 is about 423.1227281663.

It can be divided in two parts, 7575 and 2865, that added together give a triangular number (10440 = T₁₄₄).

The spelling of 75752865 in words is "seventy-five million, seven hundred fifty-two thousand, eight hundred sixty-five".