16889456 has 10 divisors (see below), whose sum is σ = 32723352. Its totient is φ = 8444720.

The previous prime is 16889447. The next prime is 16889459. The reversal of 16889456 is 65498861.

It is a self number, because there is not a number n which added to its sum of digits gives 16889456.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16889459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 527780 + ... + 527811.

Almost surely, 2^16889456 is an apocalyptic number.

16889456 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

16889456 is a deficient number, since it is larger than the sum of its proper divisors (15833896).

16889456 is a wasteful number, since it uses less digits than its factorization.

16889456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1055599 (or 1055593 counting only the distinct ones).

The product of its digits is 414720, while the sum is 47.

The square root of 16889456 is about 4109.6783329112. The cubic root of 16889456 is about 256.5696138000.

The spelling of 16889456 in words is "sixteen million, eight hundred eighty-nine thousand, four hundred fifty-six".