16977019 has 4 divisors (see below), whose sum is σ = 16990344. Its totient is φ = 16963696.

The previous prime is 16977001. The next prime is 16977029. The reversal of 16977019 is 91077961.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 91077961 = 13 ⋅7005997.

It is a cyclic number.

It is not a de Polignac number, because 16977019 - 2⁵ = 16976987 is a prime.

It is a super-2 number, since 2×16977019² = 576438348252722, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16977029) 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 3 ways as a sum of consecutive naturals, for example, 4522 + ... + 7375.

It is an arithmetic number, because the mean of its divisors is an integer number (4247586).

Almost surely, 2^16977019 is an apocalyptic number.

16977019 is a deficient number, since it is larger than the sum of its proper divisors (13325).

16977019 is a wasteful number, since it uses less digits than its factorization.

16977019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13324.

The product of its (nonzero) digits is 23814, while the sum is 40.

The square root of 16977019 is about 4120.3178275468. The cubic root of 16977019 is about 257.0122428522.

The spelling of 16977019 in words is "sixteen million, nine hundred seventy-seven thousand, nineteen".