172490463 has 24 divisors (see below), whose sum is σ = 258869520. Its totient is φ = 110544000.

The previous prime is 172490447. The next prime is 172490473. The reversal of 172490463 is 364094271.

It is not a de Polignac number, because 172490463 - 2⁴ = 172490447 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172490413) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 64195 + ... + 66827.

It is an arithmetic number, because the mean of its divisors is an integer number (10786230).

Almost surely, 2^172490463 is an apocalyptic number.

172490463 is a deficient number, since it is larger than the sum of its proper divisors (86379057).

172490463 is a wasteful number, since it uses less digits than its factorization.

172490463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2919 (or 2916 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 172490463 is about 13133.5624641603. The cubic root of 172490463 is about 556.6578817423.

The spelling of 172490463 in words is "one hundred seventy-two million, four hundred ninety thousand, four hundred sixty-three".