172804419 has 12 divisors (see below), whose sum is σ = 251103216. Its totient is φ = 114512112.

The previous prime is 172804397. The next prime is 172804421. The reversal of 172804419 is 914408271.

It is not a de Polignac number, because 172804419 - 2¹³ = 172796227 is a prime.

It is a super-2 number, since 2×172804419² = 59722734451855122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (172804019) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 55984 + ... + 58989.

It is an arithmetic number, because the mean of its divisors is an integer number (20925268).

Almost surely, 2^172804419 is an apocalyptic number.

172804419 is a deficient number, since it is larger than the sum of its proper divisors (78298797).

172804419 is a wasteful number, since it uses less digits than its factorization.

172804419 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115146 (or 115143 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 172804419 is about 13145.5094614092. The cubic root of 172804419 is about 556.9954079516.

The spelling of 172804419 in words is "one hundred seventy-two million, eight hundred four thousand, four hundred nineteen".