807172 has 12 divisors (see below), whose sum is σ = 1418956. Its totient is φ = 401760.

The previous prime is 807151. The next prime is 807181. The reversal of 807172 is 271708.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 379456 + 427716 = 616^2 + 654^2 .

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

807172 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1222 + ... + 1762.

2⁸⁰⁷¹⁷² is an apocalyptic number.

It is an amenable number.

807172 is a deficient number, since it is larger than the sum of its proper divisors (611784).

807172 is a wasteful number, since it uses less digits than its factorization.

807172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 918 (or 916 counting only the distinct ones).

The product of its (nonzero) digits is 784, while the sum is 25.

The square root of 807172 is about 898.4275151619. The cubic root of 807172 is about 93.1083640688.

It can be divided in two parts, 807 and 172, that added together give a palindrome (979).

The spelling of 807172 in words is "eight hundred seven thousand, one hundred seventy-two".