88865213 has 2 divisors, whose sum is σ = 88865214. Its totient is φ = 88865212.

The previous prime is 88865197. The next prime is 88865243. The reversal of 88865213 is 31256888.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 85618009 + 3247204 = 9253^2 + 1802^2 .

It is a cyclic number.

It is not a de Polignac number, because 88865213 - 2⁴ = 88865197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (88865243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44432606 + 44432607.

It is an arithmetic number, because the mean of its divisors is an integer number (44432607).

Almost surely, 2^88865213 is an apocalyptic number.

It is an amenable number.

88865213 is a deficient number, since it is larger than the sum of its proper divisors (1).

88865213 is an equidigital number, since it uses as much as digits as its factorization.

88865213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 92160, while the sum is 41.

The square root of 88865213 is about 9426.8347285820. The cubic root of 88865213 is about 446.2490063193.

The spelling of 88865213 in words is "eighty-eight million, eight hundred sixty-five thousand, two hundred thirteen".