75432865 has 8 divisors (see below), whose sum is σ = 90567360. Its totient is φ = 60314352.

The previous prime is 75432853. The next prime is 75432881. The reversal of 75432865 is 56823457.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 75432865 - 2⁷ = 75432737 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12876 + ... + 17794.

It is an arithmetic number, because the mean of its divisors is an integer number (11320920).

Almost surely, 2^75432865 is an apocalyptic number.

It is an amenable number.

75432865 is a deficient number, since it is larger than the sum of its proper divisors (15134495).

75432865 is a wasteful number, since it uses less digits than its factorization.

75432865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7991.

The product of its digits is 201600, while the sum is 40.

The square root of 75432865 is about 8685.2095541789. The cubic root of 75432865 is about 422.5260934131.

The spelling of 75432865 in words is "seventy-five million, four hundred thirty-two thousand, eight hundred sixty-five".