16720363 has 8 divisors (see below), whose sum is σ = 18270000. Its totient is φ = 15175680.

The previous prime is 16720357. The next prime is 16720369. The reversal of 16720363 is 36302761.

It is an interprime number because it is at equal distance from previous prime (16720357) and next prime (16720369).

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

It is a cyclic number.

It is not a de Polignac number, because 16720363 - 2¹⁷ = 16589291 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16720369) 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, 12763 + ... + 14011.

It is an arithmetic number, because the mean of its divisors is an integer number (2283750).

Almost surely, 2^16720363 is an apocalyptic number.

16720363 is a deficient number, since it is larger than the sum of its proper divisors (1549637).

16720363 is a wasteful number, since it uses less digits than its factorization.

16720363 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2477.

The product of its (nonzero) digits is 4536, while the sum is 28.

The square root of 16720363 is about 4089.0540470872. The cubic root of 16720363 is about 255.7105034359.

The spelling of 16720363 in words is "sixteen million, seven hundred twenty thousand, three hundred sixty-three".