16945377 has 4 divisors (see below), whose sum is σ = 22593840. Its totient is φ = 11296916.

The previous prime is 16945361. The next prime is 16945387. The reversal of 16945377 is 77354961.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 16945377 - 2⁴ = 16945361 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16945307) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2824227 + ... + 2824232.

It is an arithmetic number, because the mean of its divisors is an integer number (5648460).

Almost surely, 2^16945377 is an apocalyptic number.

It is an amenable number.

16945377 is a deficient number, since it is larger than the sum of its proper divisors (5648463).

16945377 is an equidigital number, since it uses as much as digits as its factorization.

16945377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5648462.

The product of its digits is 158760, while the sum is 42.

The square root of 16945377 is about 4116.4762843966. The cubic root of 16945377 is about 256.8524692382.

The spelling of 16945377 in words is "sixteen million, nine hundred forty-five thousand, three hundred seventy-seven".