16900387 has 4 divisors (see below), whose sum is σ = 19314736. Its totient is φ = 14486040.

The previous prime is 16900369. The next prime is 16900421. The reversal of 16900387 is 78300961.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 16900387 - 2¹⁵ = 16867619 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16900337) 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, 1207164 + ... + 1207177.

It is an arithmetic number, because the mean of its divisors is an integer number (4828684).

Almost surely, 2^16900387 is an apocalyptic number.

16900387 is a deficient number, since it is larger than the sum of its proper divisors (2414349).

16900387 is an equidigital number, since it uses as much as digits as its factorization.

16900387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2414348.

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 16900387 is about 4111.0080272361. The cubic root of 16900387 is about 256.6249532106.

The spelling of 16900387 in words is "sixteen million, nine hundred thousand, three hundred eighty-seven".