16906984 has 8 divisors (see below), whose sum is σ = 31700610. Its totient is φ = 8453488.

The previous prime is 16906973. The next prime is 16907057. The reversal of 16906984 is 48960961.

It can be written as a sum of positive squares in only one way, i.e., 16892100 + 14884 = 4110^2 + 122^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×16906984² = 571692215952512, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 16906984.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1056679 + ... + 1056694.

Almost surely, 2^16906984 is an apocalyptic number.

It is an amenable number.

16906984 is a deficient number, since it is larger than the sum of its proper divisors (14793626).

16906984 is a wasteful number, since it uses less digits than its factorization.

16906984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2113379 (or 2113375 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 43.

The square root of 16906984 is about 4111.8103069086. The cubic root of 16906984 is about 256.6583397160.

The spelling of 16906984 in words is "sixteen million, nine hundred six thousand, nine hundred eighty-four".