16900891 has 4 divisors (see below), whose sum is σ = 19315312. Its totient is φ = 14486472.

The previous prime is 16900879. The next prime is 16900903. The reversal of 16900891 is 19800961.

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

It is an interprime number because it is at equal distance from previous prime (16900879) and next prime (16900903).

It is not a de Polignac number, because 16900891 - 2¹³ = 16892699 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16900801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1207200 + ... + 1207213.

It is an arithmetic number, because the mean of its divisors is an integer number (4828828).

Almost surely, 2^16900891 is an apocalyptic number.

16900891 is a deficient number, since it is larger than the sum of its proper divisors (2414421).

16900891 is an equidigital number, since it uses as much as digits as its factorization.

16900891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2414420.

The product of its (nonzero) digits is 3888, while the sum is 34.

The square root of 16900891 is about 4111.0693256135. The cubic root of 16900891 is about 256.6275041915.

The spelling of 16900891 in words is "sixteen million, nine hundred thousand, eight hundred ninety-one".