16676397 has 12 divisors (see below), whose sum is σ = 24543324. Its totient is φ = 10907520.

The previous prime is 16676393. The next prime is 16676411. The reversal of 16676397 is 79367661.

16676397 is a `hidden beast` number, since 1 + 6 + 6 + 7 + 639 + 7 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 9418761 + 7257636 = 3069^2 + 2694^2 .

It is not a de Polignac number, because 16676397 - 2² = 16676393 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16676393) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17004 + ... + 17957.

It is an arithmetic number, because the mean of its divisors is an integer number (2045277).

Almost surely, 2^16676397 is an apocalyptic number.

It is an amenable number.

16676397 is a deficient number, since it is larger than the sum of its proper divisors (7866927).

16676397 is a wasteful number, since it uses less digits than its factorization.

16676397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35020 (or 35017 counting only the distinct ones).

The product of its digits is 285768, while the sum is 45.

The square root of 16676397 is about 4083.6744483369. The cubic root of 16676397 is about 255.4861774353.

The spelling of 16676397 in words is "sixteen million, six hundred seventy-six thousand, three hundred ninety-seven".