215722883 has 2 divisors, whose sum is σ = 215722884. Its totient is φ = 215722882.

The previous prime is 215722823. The next prime is 215722907. The reversal of 215722883 is 388227512.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 215722883 - 2⁸ = 215722627 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (215722823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107861441 + 107861442.

It is an arithmetic number, because the mean of its divisors is an integer number (107861442).

Almost surely, 2^215722883 is an apocalyptic number.

215722883 is a deficient number, since it is larger than the sum of its proper divisors (1).

215722883 is an equidigital number, since it uses as much as digits as its factorization.

215722883 is an evil number, because the sum of its binary digits is even.

The product of its digits is 53760, while the sum is 38.

The square root of 215722883 is about 14687.5077191469. The cubic root of 215722883 is about 599.7433003764.

The spelling of 215722883 in words is "two hundred fifteen million, seven hundred twenty-two thousand, eight hundred eighty-three".