16306997 has 8 divisors (see below), whose sum is σ = 19617600. Its totient is φ = 13241664.

The previous prime is 16306993. The next prime is 16307003. The reversal of 16306997 is 79960361.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16306997 - 2² = 16306993 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16306993) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61172 + ... + 61437.

It is an arithmetic number, because the mean of its divisors is an integer number (2452200).

Almost surely, 2^16306997 is an apocalyptic number.

It is an amenable number.

16306997 is a deficient number, since it is larger than the sum of its proper divisors (3310603).

16306997 is a wasteful number, since it uses less digits than its factorization.

16306997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122635.

The product of its (nonzero) digits is 61236, while the sum is 41.

The square root of 16306997 is about 4038.1922935888. The cubic root of 16306997 is about 253.5856440921.

The spelling of 16306997 in words is "sixteen million, three hundred six thousand, nine hundred ninety-seven".