78752959 has 4 divisors (see below), whose sum is σ = 83385504. Its totient is φ = 74120416.

The previous prime is 78752953. The next prime is 78753011. The reversal of 78752959 is 95925787.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 78752959 - 2¹³ = 78744767 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78752953) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2316247 + ... + 2316280.

It is an arithmetic number, because the mean of its divisors is an integer number (20846376).

Almost surely, 2^78752959 is an apocalyptic number.

78752959 is a deficient number, since it is larger than the sum of its proper divisors (4632545).

78752959 is a wasteful number, since it uses less digits than its factorization.

78752959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4632544.

The product of its digits is 1587600, while the sum is 52.

The square root of 78752959 is about 8874.2863938460. The cubic root of 78752959 is about 428.6363125943.

The spelling of 78752959 in words is "seventy-eight million, seven hundred fifty-two thousand, nine hundred fifty-nine".