16720367 has 8 divisors (see below), whose sum is σ = 17740800. Its totient is φ = 15704064.

The previous prime is 16720357. The next prime is 16720369. The reversal of 16720367 is 76302761.

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 16720367 - 2⁶ = 16720303 is a prime.

It is a super-2 number, since 2×16720367² = 559141345229378, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16720369) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12434 + ... + 13712.

It is an arithmetic number, because the mean of its divisors is an integer number (2217600).

Almost surely, 2^16720367 is an apocalyptic number.

16720367 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

16720367 is a deficient number, since it is larger than the sum of its proper divisors (1020433).

16720367 is a wasteful number, since it uses less digits than its factorization.

16720367 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2065.

The product of its (nonzero) digits is 10584, while the sum is 32.

The square root of 16720367 is about 4089.0545361978. The cubic root of 16720367 is about 255.7105238270.

The spelling of 16720367 in words is "sixteen million, seven hundred twenty thousand, three hundred sixty-seven".