172053838 has 24 divisors (see below), whose sum is σ = 299089224. Its totient is φ = 73603200.

The previous prime is 172053799. The next prime is 172053851. The reversal of 172053838 is 838350271.

It is a junction number, because it is equal to n+sod(n) for n = 172053797 and 172053806.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7173 + ... + 19888.

It is an arithmetic number, because the mean of its divisors is an integer number (12462051).

Almost surely, 2^172053838 is an apocalyptic number.

172053838 is a deficient number, since it is larger than the sum of its proper divisors (127035386).

172053838 is a wasteful number, since it uses less digits than its factorization.

172053838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27108 (or 27091 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 172053838 is about 13116.9294425182. The cubic root of 172053838 is about 556.1877956279.

The spelling of 172053838 in words is "one hundred seventy-two million, fifty-three thousand, eight hundred thirty-eight".