86756213 has 8 divisors (see below), whose sum is σ = 88698936. Its totient is φ = 84830400.

The previous prime is 86756203. The next prime is 86756227. The reversal of 86756213 is 31265768.

It can be written as a sum of positive squares in 4 ways, for example, as 27804529 + 58951684 = 5273^2 + 7678^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 86756213 - 2⁶ = 86756149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86756203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6443 + ... + 14663.

It is an arithmetic number, because the mean of its divisors is an integer number (11087367).

Almost surely, 2^86756213 is an apocalyptic number.

It is an amenable number.

86756213 is a deficient number, since it is larger than the sum of its proper divisors (1942723).

86756213 is a wasteful number, since it uses less digits than its factorization.

86756213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8455.

The product of its digits is 60480, while the sum is 38.

The square root of 86756213 is about 9314.3015304423. The cubic root of 86756213 is about 442.6904930619.

The spelling of 86756213 in words is "eighty-six million, seven hundred fifty-six thousand, two hundred thirteen".