76805893 has 4 divisors (see below), whose sum is σ = 78065068. Its totient is φ = 75546720.

The previous prime is 76805873. The next prime is 76805903. The reversal of 76805893 is 39850867.

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

It can be written as a sum of positive squares in 2 ways, for example, as 12837889 + 63968004 = 3583^2 + 7998^2 .

It is a cyclic number.

It is not a de Polignac number, because 76805893 - 2⁹ = 76805381 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 (76805803) 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, 629496 + ... + 629617.

It is an arithmetic number, because the mean of its divisors is an integer number (19516267).

Almost surely, 2^76805893 is an apocalyptic number.

It is an amenable number.

76805893 is a deficient number, since it is larger than the sum of its proper divisors (1259175).

76805893 is a wasteful number, since it uses less digits than its factorization.

76805893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1259174.

The product of its (nonzero) digits is 362880, while the sum is 46.

The square root of 76805893 is about 8763.8971354073. The cubic root of 76805893 is about 425.0742993515.

The spelling of 76805893 in words is "seventy-six million, eight hundred five thousand, eight hundred ninety-three".