16699401 has 12 divisors (see below), whose sum is σ = 24176880. Its totient is φ = 11107320.

The previous prime is 16699393. The next prime is 16699427. The reversal of 16699401 is 10499661.

16699401 is a `hidden beast` number, since 166 + 99 + 401 = 666.

16699401 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 16699401 - 2³ = 16699393 is a prime.

It is a zygodrome in base 8.

It is not an unprimeable number, because it can be changed into a prime (16699451) 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, 2530 + ... + 6308.

It is an arithmetic number, because the mean of its divisors is an integer number (2014740).

Almost surely, 2^16699401 is an apocalyptic number.

It is an amenable number.

16699401 is a deficient number, since it is larger than the sum of its proper divisors (7477479).

16699401 is a wasteful number, since it uses less digits than its factorization.

16699401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4276 (or 4273 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 36.

The square root of 16699401 is about 4086.4900587179. The cubic root of 16699401 is about 255.6035989560.

The spelling of 16699401 in words is "sixteen million, six hundred ninety-nine thousand, four hundred one".