172563740 has 12 divisors (see below), whose sum is σ = 362383896. Its totient is φ = 69025488.

The previous prime is 172563737. The next prime is 172563749. The reversal of 172563740 is 47365271.

It is a self number, because there is not a number n which added to its sum of digits gives 172563740.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172563749) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4314074 + ... + 4314113.

It is an arithmetic number, because the mean of its divisors is an integer number (30198658).

Almost surely, 2^172563740 is an apocalyptic number.

172563740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

172563740 is an abundant number, since it is smaller than the sum of its proper divisors (189820156).

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

172563740 is a wasteful number, since it uses less digits than its factorization.

172563740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8628196 (or 8628194 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 35.

The square root of 172563740 is about 13136.3518527786. The cubic root of 172563740 is about 556.7366966212.

The spelling of 172563740 in words is "one hundred seventy-two million, five hundred sixty-three thousand, seven hundred forty".