172671892 has 12 divisors (see below), whose sum is σ = 305000640. Its totient is φ = 85528856.

The previous prime is 172671881. The next prime is 172671913. The reversal of 172671892 is 298176271.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 201292 + ... + 202147.

It is an arithmetic number, because the mean of its divisors is an integer number (25416720).

Almost surely, 2^172671892 is an apocalyptic number.

It is an amenable number.

172671892 is a deficient number, since it is larger than the sum of its proper divisors (132328748).

172671892 is a wasteful number, since it uses less digits than its factorization.

172671892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 403550 (or 403548 counting only the distinct ones).

The product of its digits is 84672, while the sum is 43.

The square root of 172671892 is about 13140.4677237913. The cubic root of 172671892 is about 556.8529814068.

The spelling of 172671892 in words is "one hundred seventy-two million, six hundred seventy-one thousand, eight hundred ninety-two".