16623722 has 16 divisors (see below), whose sum is σ = 26853120. Its totient is φ = 7689408.

The previous prime is 16623713. The next prime is 16623751. The reversal of 16623722 is 22732661.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2138 + ... + 6149.

It is an arithmetic number, because the mean of its divisors is an integer number (1678320).

Almost surely, 2^16623722 is an apocalyptic number.

16623722 is a deficient number, since it is larger than the sum of its proper divisors (10229398).

16623722 is a wasteful number, since it uses less digits than its factorization.

16623722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8365.

The product of its digits is 6048, while the sum is 29.

The square root of 16623722 is about 4077.2198861479. The cubic root of 16623722 is about 255.2168960718.

The spelling of 16623722 in words is "sixteen million, six hundred twenty-three thousand, seven hundred twenty-two".