222984657 has 20 divisors (see below), whose sum is σ = 380687296. Its totient is φ = 127419480.

The previous prime is 222984653. The next prime is 222984661. The reversal of 222984657 is 756489222.

It is an interprime number because it is at equal distance from previous prime (222984653) and next prime (222984661).

It is not a de Polignac number, because 222984657 - 2² = 222984653 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222984653) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 196069 + ... + 197202.

Almost surely, 2^222984657 is an apocalyptic number.

222984657 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

It is an amenable number.

222984657 is a deficient number, since it is larger than the sum of its proper divisors (157702639).

222984657 is an equidigital number, since it uses as much as digits as its factorization.

222984657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 393290 (or 393281 counting only the distinct ones).

The product of its digits is 483840, while the sum is 45.

The square root of 222984657 is about 14932.6707925943. The cubic root of 222984657 is about 606.3987915233.

The spelling of 222984657 in words is "two hundred twenty-two million, nine hundred eighty-four thousand, six hundred fifty-seven".