16994651 has 2 divisors, whose sum is σ = 16994652. Its totient is φ = 16994650.

The previous prime is 16994647. The next prime is 16994657. The reversal of 16994651 is 15649961.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16994651 - 2² = 16994647 is a prime.

It is a super-2 number, since 2×16994651² = 577636325223602, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 16994599 and 16994608.

It is not a weakly prime, because it can be changed into another prime (16994657) 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 as a sum of consecutive naturals, namely, 8497325 + 8497326.

It is an arithmetic number, because the mean of its divisors is an integer number (8497326).

Almost surely, 2^16994651 is an apocalyptic number.

16994651 is a deficient number, since it is larger than the sum of its proper divisors (1).

16994651 is an equidigital number, since it uses as much as digits as its factorization.

16994651 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 58320, while the sum is 41.

The square root of 16994651 is about 4122.4569130556. The cubic root of 16994651 is about 257.1011880305.

The spelling of 16994651 in words is "sixteen million, nine hundred ninety-four thousand, six hundred fifty-one".