16897479 has 16 divisors (see below), whose sum is σ = 24748800. Its totient is φ = 10207296.

The previous prime is 16897471. The next prime is 16897481. The reversal of 16897479 is 97479861.

It is not a de Polignac number, because 16897479 - 2³ = 16897471 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16897471) 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, 5134 + ... + 7755.

It is an arithmetic number, because the mean of its divisors is an integer number (1546800).

Almost surely, 2^16897479 is an apocalyptic number.

16897479 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

16897479 is a deficient number, since it is larger than the sum of its proper divisors (7851321).

16897479 is a wasteful number, since it uses less digits than its factorization.

16897479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12934.

The product of its digits is 762048, while the sum is 51.

The square root of 16897479 is about 4110.6543274763. The cubic root of 16897479 is about 256.6102334654.

The spelling of 16897479 in words is "sixteen million, eight hundred ninety-seven thousand, four hundred seventy-nine".