16222939 has 2 divisors, whose sum is σ = 16222940. Its totient is φ = 16222938.

The previous prime is 16222907. The next prime is 16222961. The reversal of 16222939 is 93922261.

It is a strong prime.

It is an emirp because it is prime and its reverse (93922261) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16222939 - 2⁵ = 16222907 is a prime.

It is not a weakly prime, because it can be changed into another prime (16222039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8111469 + 8111470.

It is an arithmetic number, because the mean of its divisors is an integer number (8111470).

Almost surely, 2^16222939 is an apocalyptic number.

16222939 is a deficient number, since it is larger than the sum of its proper divisors (1).

16222939 is an equidigital number, since it uses as much as digits as its factorization.

16222939 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11664, while the sum is 34.

The square root of 16222939 is about 4027.7709716418. The cubic root of 16222939 is about 253.1491722890.

It can be divided in two parts, 16222 and 939, that added together give a square (17161 = 131²).

The spelling of 16222939 in words is "sixteen million, two hundred twenty-two thousand, nine hundred thirty-nine".