16953399 has 12 divisors (see below), whose sum is σ = 24531000. Its totient is φ = 11282544.

The previous prime is 16953397. The next prime is 16953421. The reversal of 16953399 is 99335961.

It is not a de Polignac number, because 16953399 - 2¹ = 16953397 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16953397) 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, 5377 + ... + 7925.

It is an arithmetic number, because the mean of its divisors is an integer number (2044250).

Almost surely, 2^16953399 is an apocalyptic number.

16953399 is a deficient number, since it is larger than the sum of its proper divisors (7577601).

16953399 is a wasteful number, since it uses less digits than its factorization.

16953399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3294 (or 3291 counting only the distinct ones).

The product of its digits is 196830, while the sum is 45.

The square root of 16953399 is about 4117.4505461511. The cubic root of 16953399 is about 256.8929944593.

The spelling of 16953399 in words is "sixteen million, nine hundred fifty-three thousand, three hundred ninety-nine".