16699407 has 8 divisors (see below), whose sum is σ = 22571184. Its totient is φ = 10980288.

The previous prime is 16699393. The next prime is 16699427. The reversal of 16699407 is 70499661.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 16699407 - 2⁴ = 16699391 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16699427) 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, 37908 + ... + 38345.

It is an arithmetic number, because the mean of its divisors is an integer number (2821398).

Almost surely, 2^16699407 is an apocalyptic number.

16699407 is a deficient number, since it is larger than the sum of its proper divisors (5871777).

16699407 is an equidigital number, since it uses as much as digits as its factorization.

16699407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76329.

The product of its (nonzero) digits is 81648, while the sum is 42.

The square root of 16699407 is about 4086.4907928441. The cubic root of 16699407 is about 255.6036295683.

The spelling of 16699407 in words is "sixteen million, six hundred ninety-nine thousand, four hundred seven".