215396963 has 2 divisors, whose sum is σ = 215396964. Its totient is φ = 215396962.

The previous prime is 215396957. The next prime is 215396969. The reversal of 215396963 is 369693512.

It is a balanced prime because it is at equal distance from previous prime (215396957) and next prime (215396969).

It is a cyclic number.

It is not a de Polignac number, because 215396963 - 2⁸ = 215396707 is a prime.

It is not a weakly prime, because it can be changed into another prime (215396969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107698481 + 107698482.

It is an arithmetic number, because the mean of its divisors is an integer number (107698482).

Almost surely, 2^215396963 is an apocalyptic number.

215396963 is a deficient number, since it is larger than the sum of its proper divisors (1).

215396963 is an equidigital number, since it uses as much as digits as its factorization.

215396963 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 262440, while the sum is 44.

The square root of 215396963 is about 14676.4083821622. The cubic root of 215396963 is about 599.4411119760.

The spelling of 215396963 in words is "two hundred fifteen million, three hundred ninety-six thousand, nine hundred sixty-three".