88243213 has 2 divisors, whose sum is σ = 88243214. Its totient is φ = 88243212.

The previous prime is 88243171. The next prime is 88243217. The reversal of 88243213 is 31234288.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 68856804 + 19386409 = 8298^2 + 4403^2 .

It is a cyclic number.

It is not a de Polignac number, because 88243213 - 2²¹ = 86146061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (88243217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44121606 + 44121607.

It is an arithmetic number, because the mean of its divisors is an integer number (44121607).

Almost surely, 2^88243213 is an apocalyptic number.

It is an amenable number.

88243213 is a deficient number, since it is larger than the sum of its proper divisors (1).

88243213 is an equidigital number, since it uses as much as digits as its factorization.

88243213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9216, while the sum is 31.

The square root of 88243213 is about 9393.7858715217. The cubic root of 88243213 is about 445.2054145702.

The spelling of 88243213 in words is "eighty-eight million, two hundred forty-three thousand, two hundred thirteen".