80919170 has 16 divisors (see below), whose sum is σ = 145905408. Its totient is φ = 32311920.

The previous prime is 80919161. The next prime is 80919173. The reversal of 80919170 is 7191908.

It is a self number, because there is not a number n which added to its sum of digits gives 80919170.

It is not an unprimeable number, because it can be changed into a prime (80919173) 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, 596 + ... + 12735.

It is an arithmetic number, because the mean of its divisors is an integer number (9119088).

Almost surely, 2^80919170 is an apocalyptic number.

80919170 is a deficient number, since it is larger than the sum of its proper divisors (64986238).

80919170 is a wasteful number, since it uses less digits than its factorization.

80919170 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13945.

The product of its (nonzero) digits is 4536, while the sum is 35.

The square root of 80919170 is about 8995.5083236024. The cubic root of 80919170 is about 432.5309009296.

The spelling of 80919170 in words is "eighty million, nine hundred nineteen thousand, one hundred seventy".