77079 has 4 divisors (see below), whose sum is σ = 102776. Its totient is φ = 51384.

The previous prime is 77069. The next prime is 77081. The reversal of 77079 is 97077.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 97077 = 3 ⋅32359.

It is not a de Polignac number, because 77079 - 2⁵ = 77047 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77029) 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, 12844 + ... + 12849.

It is an arithmetic number, because the mean of its divisors is an integer number (25694).

2⁷⁷⁰⁷⁹ is an apocalyptic number.

77079 is a deficient number, since it is larger than the sum of its proper divisors (25697).

77079 is a wasteful number, since it uses less digits than its factorization.

77079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25696.

The product of its (nonzero) digits is 3087, while the sum is 30.

The square root of 77079 is about 277.6310501367. The cubic root of 77079 is about 42.5577530872.

The spelling of 77079 in words is "seventy-seven thousand, seventy-nine".