16630869 has 4 divisors (see below), whose sum is σ = 22174496. Its totient is φ = 11087244.

The previous prime is 16630847. The next prime is 16630883. The reversal of 16630869 is 96803661.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 16630869 - 2⁷ = 16630741 is a prime.

It is a super-2 number, since 2×16630869² = 553171607390322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16630819) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2771809 + ... + 2771814.

It is an arithmetic number, because the mean of its divisors is an integer number (5543624).

Almost surely, 2^16630869 is an apocalyptic number.

It is an amenable number.

16630869 is a deficient number, since it is larger than the sum of its proper divisors (5543627).

16630869 is an equidigital number, since it uses as much as digits as its factorization.

16630869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5543626.

The product of its (nonzero) digits is 46656, while the sum is 39.

The square root of 16630869 is about 4078.0962470251. The cubic root of 16630869 is about 255.2534657766.

The spelling of 16630869 in words is "sixteen million, six hundred thirty thousand, eight hundred sixty-nine".