80155879 has 8 divisors (see below), whose sum is σ = 81268880. Its totient is φ = 79050816.

The previous prime is 80155841. The next prime is 80155883. The reversal of 80155879 is 97855108.

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 80155879 - 2¹¹ = 80153831 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 (80155819) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19987 + ... + 23659.

It is an arithmetic number, because the mean of its divisors is an integer number (10158610).

Almost surely, 2^80155879 is an apocalyptic number.

80155879 is a deficient number, since it is larger than the sum of its proper divisors (1113001).

80155879 is a wasteful number, since it uses less digits than its factorization.

80155879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3969.

The product of its (nonzero) digits is 100800, while the sum is 43.

The square root of 80155879 is about 8952.9815704044. The cubic root of 80155879 is about 431.1666157063.

The spelling of 80155879 in words is "eighty million, one hundred fifty-five thousand, eight hundred seventy-nine".