172880794 has 4 divisors (see below), whose sum is σ = 259321194. Its totient is φ = 86440396.

The previous prime is 172880789. The next prime is 172880801. The reversal of 172880794 is 497088271.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 497088271 = 293 ⋅1696547.

It can be written as a sum of positive squares in only one way, i.e., 133980625 + 38900169 = 11575^2 + 6237^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43220197 + ... + 43220200.

Almost surely, 2^172880794 is an apocalyptic number.

172880794 is a deficient number, since it is larger than the sum of its proper divisors (86440400).

172880794 is an equidigital number, since it uses as much as digits as its factorization.

172880794 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86440399.

The product of its (nonzero) digits is 225792, while the sum is 46.

The square root of 172880794 is about 13148.4141249049. The cubic root of 172880794 is about 557.0774549633.

The spelling of 172880794 in words is "one hundred seventy-two million, eight hundred eighty thousand, seven hundred ninety-four".