172050986 has 8 divisors (see below), whose sum is σ = 258157380. Its totient is φ = 85998528.

The previous prime is 172050979. The next prime is 172051007. The reversal of 172050986 is 689050271.

It can be written as a sum of positive squares in 2 ways, for example, as 158130625 + 13920361 = 12575^2 + 3731^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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, 4241 + ... + 19028.

Almost surely, 2^172050986 is an apocalyptic number.

172050986 is a deficient number, since it is larger than the sum of its proper divisors (86106394).

172050986 is a wasteful number, since it uses less digits than its factorization.

172050986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26968.

The product of its (nonzero) digits is 30240, while the sum is 38.

The square root of 172050986 is about 13116.8207276001. The cubic root of 172050986 is about 556.1847224496.

The spelling of 172050986 in words is "one hundred seventy-two million, fifty thousand, nine hundred eighty-six".