16913690 has 8 divisors (see below), whose sum is σ = 30444660. Its totient is φ = 6765472.

The previous prime is 16913669. The next prime is 16913713. The reversal of 16913690 is 9631961.

It can be written as a sum of positive squares in 2 ways, for example, as 15499969 + 1413721 = 3937^2 + 1189^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×16913690² = 572145818832200, 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 16913690.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 845675 + ... + 845694.

Almost surely, 2^16913690 is an apocalyptic number.

16913690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16913690 is a deficient number, since it is larger than the sum of its proper divisors (13530970).

16913690 is a wasteful number, since it uses less digits than its factorization.

16913690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1691376.

The product of its (nonzero) digits is 8748, while the sum is 35.

The square root of 16913690 is about 4112.6256819701. The cubic root of 16913690 is about 256.6922689553.

The spelling of 16913690 in words is "sixteen million, nine hundred thirteen thousand, six hundred ninety".