80746879 has 4 divisors (see below), whose sum is σ = 80821584. Its totient is φ = 80672176.

The previous prime is 80746871. The next prime is 80746891. The reversal of 80746879 is 97864708.

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

It is a cyclic number.

It is not a de Polignac number, because 80746879 - 2³ = 80746871 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 (80746871) 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, 35707 + ... + 37900.

It is an arithmetic number, because the mean of its divisors is an integer number (20205396).

Almost surely, 2^80746879 is an apocalyptic number.

80746879 is a deficient number, since it is larger than the sum of its proper divisors (74705).

80746879 is a wasteful number, since it uses less digits than its factorization.

80746879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74704.

The product of its (nonzero) digits is 677376, while the sum is 49.

The square root of 80746879 is about 8985.9267190424. The cubic root of 80746879 is about 432.2237049395.

The spelling of 80746879 in words is "eighty million, seven hundred forty-six thousand, eight hundred seventy-nine".