16720083 has 12 divisors (see below), whose sum is σ = 24198408. Its totient is φ = 11124960.

The previous prime is 16720073. The next prime is 16720097. The reversal of 16720083 is 38002761.

It is not a de Polignac number, because 16720083 - 2¹⁸ = 16457939 is a prime.

It is a super-2 number, since 2×16720083² = 559122351053778, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (16720043) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4048 + ... + 7058.

It is an arithmetic number, because the mean of its divisors is an integer number (2016534).

Almost surely, 2^16720083 is an apocalyptic number.

16720083 is a deficient number, since it is larger than the sum of its proper divisors (7478325).

16720083 is a wasteful number, since it uses less digits than its factorization.

16720083 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3634 (or 3631 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 16720083 is about 4089.0198091963. The cubic root of 16720083 is about 255.7090760478.

The spelling of 16720083 in words is "sixteen million, seven hundred twenty thousand, eighty-three".