172230684 has 24 divisors (see below), whose sum is σ = 403189248. Its totient is φ = 57222000.

The previous prime is 172230683. The next prime is 172230697. The reversal of 172230684 is 486032271.

It is a super-2 number, since 2×172230684² = 59326817022215712, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172230683) 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, 19692 + ... + 27059.

It is an arithmetic number, because the mean of its divisors is an integer number (16799552).

Almost surely, 2^172230684 is an apocalyptic number.

It is an amenable number.

172230684 is an abundant number, since it is smaller than the sum of its proper divisors (230958564).

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

172230684 is a wasteful number, since it uses less digits than its factorization.

172230684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47065 (or 47063 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 172230684 is about 13123.6688467821. The cubic root of 172230684 is about 556.3782900831.

The spelling of 172230684 in words is "one hundred seventy-two million, two hundred thirty thousand, six hundred eighty-four".