77983827 has 8 divisors (see below), whose sum is σ = 106788816. Its totient is φ = 50584032.

The previous prime is 77983793. The next prime is 77983831. The reversal of 77983827 is 72838977.

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

It is not a de Polignac number, because 77983827 - 2⁸ = 77983571 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 77983827.

It is not an unprimeable number, because it can be changed into a prime (77983877) by changing a digit.

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, 351168 + ... + 351389.

It is an arithmetic number, because the mean of its divisors is an integer number (13348602).

Almost surely, 2^77983827 is an apocalyptic number.

77983827 is a deficient number, since it is larger than the sum of its proper divisors (28804989).

77983827 is a wasteful number, since it uses less digits than its factorization.

77983827 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 702597.

The product of its digits is 1185408, while the sum is 51.

The square root of 77983827 is about 8830.8452030369. The cubic root of 77983827 is about 427.2363354837.

The spelling of 77983827 in words is "seventy-seven million, nine hundred eighty-three thousand, eight hundred twenty-seven".