80172004 has 12 divisors (see below), whose sum is σ = 153055728. Its totient is φ = 36441800.

The previous prime is 80171981. The next prime is 80172011. The reversal of 80172004 is 40027108.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 911002 + ... + 911089.

It is an arithmetic number, because the mean of its divisors is an integer number (12754644).

Almost surely, 2^80172004 is an apocalyptic number.

It is an amenable number.

80172004 is a deficient number, since it is larger than the sum of its proper divisors (72883724).

80172004 is a wasteful number, since it uses less digits than its factorization.

80172004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1822106 (or 1822104 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 22.

The square root of 80172004 is about 8953.8820631054. The cubic root of 80172004 is about 431.1955264388.

Subtracting from 80172004 its reverse (40027108), we obtain a square (40144896 = 6336²).

The spelling of 80172004 in words is "eighty million, one hundred seventy-two thousand, four".