86934213 has 12 divisors (see below), whose sum is σ = 126867468. Its totient is φ = 57358080.

The previous prime is 86934203. The next prime is 86934229. The reversal of 86934213 is 31243968.

It can be written as a sum of positive squares in 2 ways, for example, as 58706244 + 28227969 = 7662^2 + 5313^2 .

It is not a de Polignac number, because 86934213 - 2²⁰ = 85885637 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86934203) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 48918 + ... + 50663.

It is an arithmetic number, because the mean of its divisors is an integer number (10572289).

Almost surely, 2^86934213 is an apocalyptic number.

It is an amenable number.

86934213 is a deficient number, since it is larger than the sum of its proper divisors (39933255).

86934213 is a wasteful number, since it uses less digits than its factorization.

86934213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99684 (or 99681 counting only the distinct ones).

The product of its digits is 31104, while the sum is 36.

The square root of 86934213 is about 9323.8518327996. The cubic root of 86934213 is about 442.9930461399.

The spelling of 86934213 in words is "eighty-six million, nine hundred thirty-four thousand, two hundred thirteen".