16720502 has 8 divisors (see below), whose sum is σ = 25174800. Its totient is φ = 8328904.

The previous prime is 16720481. The next prime is 16720511. The reversal of 16720502 is 20502761.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15002 + ... + 16077.

It is an arithmetic number, because the mean of its divisors is an integer number (3146850).

Almost surely, 2^16720502 is an apocalyptic number.

16720502 is a deficient number, since it is larger than the sum of its proper divisors (8454298).

16720502 is a wasteful number, since it uses less digits than its factorization.

16720502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31350.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 16720502 is about 4089.0710436479. The cubic root of 16720502 is about 255.7112120262.

The spelling of 16720502 in words is "sixteen million, seven hundred twenty thousand, five hundred two".