77956339 has 8 divisors (see below), whose sum is σ = 83538000. Its totient is φ = 72485376.

The previous prime is 77956337. The next prime is 77956369. The reversal of 77956339 is 93365977.

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 77956339 - 2¹ = 77956337 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 77956292 and 77956301.

It is not an unprimeable number, because it can be changed into a prime (77956337) 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, 26214 + ... + 29035.

It is an arithmetic number, because the mean of its divisors is an integer number (10442250).

Almost surely, 2^77956339 is an apocalyptic number.

77956339 is a deficient number, since it is larger than the sum of its proper divisors (5581661).

77956339 is a wasteful number, since it uses less digits than its factorization.

77956339 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55349.

The product of its digits is 1071630, while the sum is 49.

The square root of 77956339 is about 8829.2887029477. The cubic root of 77956339 is about 427.1861316874.

The spelling of 77956339 in words is "seventy-seven million, nine hundred fifty-six thousand, three hundred thirty-nine".