172863852 has 48 divisors (see below), whose sum is σ = 473437440. Its totient is φ = 48053952.

The previous prime is 172863841. The next prime is 172863857. The reversal of 172863852 is 258368271.

172863852 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×172863852² = 59763822656555808, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (172863857) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24702 + ... + 30917.

It is an arithmetic number, because the mean of its divisors is an integer number (9863280).

Almost surely, 2^172863852 is an apocalyptic number.

172863852 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

172863852 is an abundant number, since it is smaller than the sum of its proper divisors (300573588).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

172863852 is a wasteful number, since it uses less digits than its factorization.

172863852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55670 (or 55668 counting only the distinct ones).

The product of its digits is 161280, while the sum is 42.

The square root of 172863852 is about 13147.7698489135. The cubic root of 172863852 is about 557.0592568467.

The spelling of 172863852 in words is "one hundred seventy-two million, eight hundred sixty-three thousand, eight hundred fifty-two".