22028351 has 2 divisors, whose sum is σ = 22028352. Its totient is φ = 22028350.

The previous prime is 22028323. The next prime is 22028359. The reversal of 22028351 is 15382022.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22028351 - 2⁶ = 22028287 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22028359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11014175 + 11014176.

It is an arithmetic number, because the mean of its divisors is an integer number (11014176).

Almost surely, 2^22028351 is an apocalyptic number.

22028351 is a deficient number, since it is larger than the sum of its proper divisors (1).

22028351 is an equidigital number, since it uses as much as digits as its factorization.

22028351 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 22028351 is about 4693.4370135328. The cubic root of 22028351 is about 280.3242459700.

The spelling of 22028351 in words is "twenty-two million, twenty-eight thousand, three hundred fifty-one".