16946631 has 16 divisors (see below), whose sum is σ = 27037920. Its totient is φ = 10428480.

The previous prime is 16946627. The next prime is 16946663. The reversal of 16946631 is 13664961.

16946631 is a `hidden beast` number, since 16 + 9 + 4 + 6 + 631 = 666.

It is not a de Polignac number, because 16946631 - 2² = 16946627 is a prime.

It is a super-2 number, since 2×16946631² = 574376604500322, which contains 22 as substring.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16946131) by changing a digit.

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 in 15 ways as a sum of consecutive naturals, for example, 23790 + ... + 24491.

It is an arithmetic number, because the mean of its divisors is an integer number (1689870).

Almost surely, 2^16946631 is an apocalyptic number.

16946631 is a deficient number, since it is larger than the sum of its proper divisors (10091289).

16946631 is a wasteful number, since it uses less digits than its factorization.

16946631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48303 (or 48297 counting only the distinct ones).

The product of its digits is 23328, while the sum is 36.

The square root of 16946631 is about 4116.6285963152. The cubic root of 16946631 is about 256.8588049889.

The spelling of 16946631 in words is "sixteen million, nine hundred forty-six thousand, six hundred thirty-one".