16683690 has 16 divisors (see below), whose sum is σ = 40040928. Its totient is φ = 4448976.

The previous prime is 16683677. The next prime is 16683697. The reversal of 16683690 is 9638661.

It is a happy number.

It is a super-2 number, since 2×16683690² = 556691024032200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (16683697) 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, 278032 + ... + 278091.

It is an arithmetic number, because the mean of its divisors is an integer number (2502558).

Almost surely, 2^16683690 is an apocalyptic number.

16683690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16683690 is an abundant number, since it is smaller than the sum of its proper divisors (23357238).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16683690 is a wasteful number, since it uses less digits than its factorization.

16683690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 556133.

The product of its (nonzero) digits is 46656, while the sum is 39.

The square root of 16683690 is about 4084.5672965444. The cubic root of 16683690 is about 255.5234154778.

The spelling of 16683690 in words is "sixteen million, six hundred eighty-three thousand, six hundred ninety".