77113439 has 8 divisors (see below), whose sum is σ = 85290240. Its totient is φ = 69257376.

The previous prime is 77113433. The next prime is 77113451. The reversal of 77113439 is 93431177.

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 77113439 - 2¹⁶ = 77047903 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 77113399 and 77113408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77113433) 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, 79679 + ... + 80640.

It is an arithmetic number, because the mean of its divisors is an integer number (10661280).

Almost surely, 2^77113439 is an apocalyptic number.

77113439 is a deficient number, since it is larger than the sum of its proper divisors (8176801).

77113439 is a wasteful number, since it uses less digits than its factorization.

77113439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160369.

The product of its digits is 15876, while the sum is 35.

The square root of 77113439 is about 8781.4257953934. The cubic root of 77113439 is about 425.6409043043.

The spelling of 77113439 in words is "seventy-seven million, one hundred thirteen thousand, four hundred thirty-nine".