16920227 has 8 divisors (see below), whose sum is σ = 17184960. Its totient is φ = 16657600.

The previous prime is 16920221. The next prime is 16920251. The reversal of 16920227 is 72202961.

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 16920227 - 2⁸ = 16919971 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16920227.

It is not an unprimeable number, because it can be changed into a prime (16920221) 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, 23174 + ... + 23892.

It is an arithmetic number, because the mean of its divisors is an integer number (2148120).

Almost surely, 2^16920227 is an apocalyptic number.

16920227 is a deficient number, since it is larger than the sum of its proper divisors (264733).

16920227 is a wasteful number, since it uses less digits than its factorization.

16920227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1053.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 16920227 is about 4113.4203529423. The cubic root of 16920227 is about 256.7253345022.

The spelling of 16920227 in words is "sixteen million, nine hundred twenty thousand, two hundred twenty-seven".