172479764 has 6 divisors (see below), whose sum is σ = 301839594. Its totient is φ = 86239880.

The previous prime is 172479761. The next prime is 172479781. The reversal of 172479764 is 467974271.

It is a happy number.

172479764 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 137077264 + 35402500 = 11708^2 + 5950^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172479761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21559967 + ... + 21559974.

It is an arithmetic number, because the mean of its divisors is an integer number (50306599).

Almost surely, 2^172479764 is an apocalyptic number.

It is an amenable number.

172479764 is a deficient number, since it is larger than the sum of its proper divisors (129359830).

172479764 is a wasteful number, since it uses less digits than its factorization.

172479764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43119945 (or 43119943 counting only the distinct ones).

The product of its digits is 592704, while the sum is 47.

The square root of 172479764 is about 13133.1551426152. The cubic root of 172479764 is about 556.6463723025.

The spelling of 172479764 in words is "one hundred seventy-two million, four hundred seventy-nine thousand, seven hundred sixty-four".