16722998 has 16 divisors (see below), whose sum is σ = 25945920. Its totient is φ = 8078400.

The previous prime is 16722997. The next prime is 16723027. The reversal of 16722998 is 89922761.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16722997) 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, 8003 + ... + 9873.

It is an arithmetic number, because the mean of its divisors is an integer number (1621620).

Almost surely, 2^16722998 is an apocalyptic number.

16722998 is a deficient number, since it is larger than the sum of its proper divisors (9222922).

16722998 is a wasteful number, since it uses less digits than its factorization.

16722998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2023.

The product of its digits is 108864, while the sum is 44.

The square root of 16722998 is about 4089.3762360536. The cubic root of 16722998 is about 255.7239353967.

The spelling of 16722998 in words is "sixteen million, seven hundred twenty-two thousand, nine hundred ninety-eight".