16745819 has 2 divisors, whose sum is σ = 16745820. Its totient is φ = 16745818.

The previous prime is 16745803. The next prime is 16745879. The reversal of 16745819 is 91854761.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16745819 - 2⁴ = 16745803 is a prime.

It is a super-2 number, since 2×16745819² = 560844907961522, which contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (16745879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8372909 + 8372910.

It is an arithmetic number, because the mean of its divisors is an integer number (8372910).

Almost surely, 2^16745819 is an apocalyptic number.

16745819 is a deficient number, since it is larger than the sum of its proper divisors (1).

16745819 is an equidigital number, since it uses as much as digits as its factorization.

16745819 is an evil number, because the sum of its binary digits is even.

The product of its digits is 60480, while the sum is 41.

The square root of 16745819 is about 4092.1655636105. The cubic root of 16745819 is about 255.8402068791.

The spelling of 16745819 in words is "sixteen million, seven hundred forty-five thousand, eight hundred nineteen".