220693427 has 2 divisors, whose sum is σ = 220693428. Its totient is φ = 220693426.

The previous prime is 220693399. The next prime is 220693469. The reversal of 220693427 is 724396022.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 220693427 - 2²⁴ = 203916211 is a prime.

It is a Chen prime.

It is equal to p_12158558 and since 220693427 and 12158558 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (220693477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110346713 + 110346714.

It is an arithmetic number, because the mean of its divisors is an integer number (110346714).

Almost surely, 2^220693427 is an apocalyptic number.

220693427 is a deficient number, since it is larger than the sum of its proper divisors (1).

220693427 is an equidigital number, since it uses as much as digits as its factorization.

220693427 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36288, while the sum is 35.

The square root of 220693427 is about 14855.7540030791. The cubic root of 220693427 is about 604.3146641561.

The spelling of 220693427 in words is "two hundred twenty million, six hundred ninety-three thousand, four hundred twenty-seven".