16390847 has 16 divisors (see below), whose sum is σ = 18745344. Its totient is φ = 14196000.

The previous prime is 16390837. The next prime is 16390867. The reversal of 16390847 is 74809361.

It is a cyclic number.

It is not a de Polignac number, because 16390847 - 2⁴ = 16390831 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16390847.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16390807) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23873 + ... + 24549.

It is an arithmetic number, because the mean of its divisors is an integer number (1171584).

Almost surely, 2^16390847 is an apocalyptic number.

16390847 is a deficient number, since it is larger than the sum of its proper divisors (2354497).

16390847 is a wasteful number, since it uses less digits than its factorization.

16390847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 790.

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 16390847 is about 4048.5611024165. The cubic root of 16390847 is about 254.0195440352.

The spelling of 16390847 in words is "sixteen million, three hundred ninety thousand, eight hundred forty-seven".