16942819 has 2 divisors, whose sum is σ = 16942820. Its totient is φ = 16942818.

The previous prime is 16942787. The next prime is 16942823. The reversal of 16942819 is 91824961.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16942819 - 2⁵ = 16942787 is a prime.

It is a super-2 number, since 2×16942819² = 574118231333522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (16942859) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8471409 + 8471410.

It is an arithmetic number, because the mean of its divisors is an integer number (8471410).

Almost surely, 2^16942819 is an apocalyptic number.

16942819 is a deficient number, since it is larger than the sum of its proper divisors (1).

16942819 is an equidigital number, since it uses as much as digits as its factorization.

16942819 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31104, while the sum is 40.

The square root of 16942819 is about 4116.1655700421. The cubic root of 16942819 is about 256.8395441460.

The spelling of 16942819 in words is "sixteen million, nine hundred forty-two thousand, eight hundred nineteen".