172090484 has 6 divisors (see below), whose sum is σ = 301158354. Its totient is φ = 86045240.

The previous prime is 172090483. The next prime is 172090487. The reversal of 172090484 is 484090271.

It can be written as a sum of positive squares in only one way, i.e., 112954384 + 59136100 = 10628^2 + 7690^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172090481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21511307 + ... + 21511314.

It is an arithmetic number, because the mean of its divisors is an integer number (50193059).

Almost surely, 2^172090484 is an apocalyptic number.

It is an amenable number.

172090484 is a deficient number, since it is larger than the sum of its proper divisors (129067870).

172090484 is a wasteful number, since it uses less digits than its factorization.

172090484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43022625 (or 43022623 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 172090484 is about 13118.3262651910. The cubic root of 172090484 is about 556.2272805769.

The spelling of 172090484 in words is "one hundred seventy-two million, ninety thousand, four hundred eighty-four".