16390697 has 8 divisors (see below), whose sum is σ = 17502144. Its totient is φ = 15312528.

The previous prime is 16390681. The next prime is 16390721. The reversal of 16390697 is 79609361.

It is a happy number.

16390697 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 16390697 - 2⁴ = 16390681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16390607) 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, 7298 + ... + 9275.

It is an arithmetic number, because the mean of its divisors is an integer number (2187768).

Almost surely, 2^16390697 is an apocalyptic number.

It is an amenable number.

16390697 is a deficient number, since it is larger than the sum of its proper divisors (1111447).

16390697 is a wasteful number, since it uses less digits than its factorization.

16390697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16639.

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

The square root of 16390697 is about 4048.5425772740. The cubic root of 16390697 is about 254.0187691506.

The spelling of 16390697 in words is "sixteen million, three hundred ninety thousand, six hundred ninety-seven".