16696697 has 4 divisors (see below), whose sum is σ = 16780800. Its totient is φ = 16612596.

The previous prime is 16696681. The next prime is 16696699. The reversal of 16696697 is 79669661.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 79669661 = 743 ⋅107227.

It is a cyclic number.

It is not a de Polignac number, because 16696697 - 2⁴ = 16696681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16696699) 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, 41753 + ... + 42150.

It is an arithmetic number, because the mean of its divisors is an integer number (4195200).

Almost surely, 2^16696697 is an apocalyptic number.

It is an amenable number.

16696697 is a deficient number, since it is larger than the sum of its proper divisors (84103).

16696697 is an equidigital number, since it uses as much as digits as its factorization.

16696697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84102.

The product of its digits is 734832, while the sum is 50.

The square root of 16696697 is about 4086.1591990523. The cubic root of 16696697 is about 255.5898022647.

The spelling of 16696697 in words is "sixteen million, six hundred ninety-six thousand, six hundred ninety-seven".