16397633 has 8 divisors (see below), whose sum is σ = 18912960. Its totient is φ = 13925520.

The previous prime is 16397629. The next prime is 16397651. The reversal of 16397633 is 33679361.

It is a happy number.

16397633 is digitally balanced in base 2 and base 8, because in such bases it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 16397633 - 2² = 16397629 is a prime.

It is a Duffinian number.

16397633 is strictly pandigital in base 8.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (16397683) 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, 9983 + ... + 11508.

It is an arithmetic number, because the mean of its divisors is an integer number (2364120).

Almost surely, 2^16397633 is an apocalyptic number.

It is an amenable number.

16397633 is a deficient number, since it is larger than the sum of its proper divisors (2515327).

16397633 is a wasteful number, since it uses less digits than its factorization.

16397633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21607.

The product of its digits is 61236, while the sum is 38.

The square root of 16397633 is about 4049.3990912233. The cubic root of 16397633 is about 254.0545948737.

The spelling of 16397633 in words is "sixteen million, three hundred ninety-seven thousand, six hundred thirty-three".