172669504 has 56 divisors (see below), whose sum is σ = 404254208. Its totient is φ = 71608320.

The previous prime is 172669489. The next prime is 172669517. The reversal of 172669504 is 405966271.

It is a tau number, because it is divible by the number of its divisors (56).

It is a super-2 number, since 2×172669504² = 59629515223212032, 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 in 7 ways as a sum of consecutive naturals, for example, 7672 + ... + 20104.

Almost surely, 2^172669504 is an apocalyptic number.

172669504 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 172669504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (202127104).

172669504 is an abundant number, since it is smaller than the sum of its proper divisors (231584704).

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

172669504 is a wasteful number, since it uses less digits than its factorization.

172669504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12483 (or 12473 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 40.

The square root of 172669504 is about 13140.3768591316. The cubic root of 172669504 is about 556.8504143589.

The spelling of 172669504 in words is "one hundred seventy-two million, six hundred sixty-nine thousand, five hundred four".