16390791 has 12 divisors (see below), whose sum is σ = 23822968. Its totient is φ = 10859184.

The previous prime is 16390753. The next prime is 16390799. The reversal of 16390791 is 19709361.

It is not a de Polignac number, because 16390791 - 2¹³ = 16382599 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16390799) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4120 + ... + 7053.

Almost surely, 2^16390791 is an apocalyptic number.

16390791 is a deficient number, since it is larger than the sum of its proper divisors (7432177).

16390791 is a wasteful number, since it uses less digits than its factorization.

16390791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11342 (or 11339 counting only the distinct ones).

The product of its (nonzero) digits is 10206, while the sum is 36.

The square root of 16390791 is about 4048.5541863732. The cubic root of 16390791 is about 254.0192547455.

The spelling of 16390791 in words is "sixteen million, three hundred ninety thousand, seven hundred ninety-one".