802878179 has 4 divisors (see below), whose sum is σ = 807803976. Its totient is φ = 797952384.

The previous prime is 802878169. The next prime is 802878191. The reversal of 802878179 is 971878208.

It is a happy number.

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 802878179 - 2²⁸ = 534442723 is a prime.

It is a super-2 number, since 2×802878179² = 1289226740628712082, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (802878119) 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, 2462654 + ... + 2462979.

It is an arithmetic number, because the mean of its divisors is an integer number (201950994).

Almost surely, 2^802878179 is an apocalyptic number.

802878179 is a deficient number, since it is larger than the sum of its proper divisors (4925797).

802878179 is a wasteful number, since it uses less digits than its factorization.

802878179 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4925796.

The product of its (nonzero) digits is 451584, while the sum is 50.

The square root of 802878179 is about 28335.1050642132. The cubic root of 802878179 is about 929.4297112560.

The spelling of 802878179 in words is "eight hundred two million, eight hundred seventy-eight thousand, one hundred seventy-nine".