171936946 has 16 divisors (see below), whose sum is σ = 275785560. Its totient is φ = 80108800.

The previous prime is 171936913. The next prime is 171936949. The reversal of 171936946 is 649639171.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 167573025 + 4363921 = 12945^2 + 2089^2 .

It is a junction number, because it is equal to n+sod(n) for n = 171936896 and 171936905.

It is not an unprimeable number, because it can be changed into a prime (171936949) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21601 + ... + 28468.

Almost surely, 2^171936946 is an apocalyptic number.

171936946 is a deficient number, since it is larger than the sum of its proper divisors (103848614).

171936946 is a wasteful number, since it uses less digits than its factorization.

171936946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50189.

The product of its digits is 244944, while the sum is 46.

The square root of 171936946 is about 13112.4729170359. The cubic root of 171936946 is about 556.0618105808.

The spelling of 171936946 in words is "one hundred seventy-one million, nine hundred thirty-six thousand, nine hundred forty-six".