172036966 has 4 divisors (see below), whose sum is σ = 258055452. Its totient is φ = 86018482.

The previous prime is 172036933. The next prime is 172036973. The reversal of 172036966 is 669630271.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43009240 + ... + 43009243.

It is an arithmetic number, because the mean of its divisors is an integer number (64513863).

Almost surely, 2^172036966 is an apocalyptic number.

172036966 is a deficient number, since it is larger than the sum of its proper divisors (86018486).

172036966 is an equidigital number, since it uses as much as digits as its factorization.

172036966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86018485.

The product of its (nonzero) digits is 81648, while the sum is 40.

The square root of 172036966 is about 13116.2862884278. The cubic root of 172036966 is about 556.1696146768.

The spelling of 172036966 in words is "one hundred seventy-two million, thirty-six thousand, nine hundred sixty-six".