172953408 has 56 divisors (see below), whose sum is σ = 463161888. Its totient is φ = 56951296.

The previous prime is 172953401. The next prime is 172953449. The reversal of 172953408 is 804359271.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172953401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10510 + ... + 21362.

It is an arithmetic number, because the mean of its divisors is an integer number (8270748).

Almost surely, 2^172953408 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 172953408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (231580944).

172953408 is an abundant number, since it is smaller than the sum of its proper divisors (290208480).

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

172953408 is a wasteful number, since it uses less digits than its factorization.

172953408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10951 (or 10941 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 172953408 is about 13151.1751566162. The cubic root of 172953408 is about 557.1554392575.

The spelling of 172953408 in words is "one hundred seventy-two million, nine hundred fifty-three thousand, four hundred eight".