172029476 has 6 divisors (see below), whose sum is σ = 301051590. Its totient is φ = 86014736.

The previous prime is 172029469. The next prime is 172029491. The reversal of 172029476 is 674920271.

It can be written as a sum of positive squares in only one way, i.e., 116079076 + 55950400 = 10774^2 + 7480^2 .

It is a super-2 number, since 2×172029476² = 59188281225669152, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21503681 + ... + 21503688.

It is an arithmetic number, because the mean of its divisors is an integer number (50175265).

Almost surely, 2^172029476 is an apocalyptic number.

It is an amenable number.

172029476 is a deficient number, since it is larger than the sum of its proper divisors (129022114).

172029476 is a wasteful number, since it uses less digits than its factorization.

172029476 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43007373 (or 43007371 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 38.

The square root of 172029476 is about 13116.0007624275. Note that the first 3 decimals coincide. The cubic root of 172029476 is about 556.1615432122.

The spelling of 172029476 in words is "one hundred seventy-two million, twenty-nine thousand, four hundred seventy-six".