86870713 has 2 divisors, whose sum is σ = 86870714. Its totient is φ = 86870712.

The previous prime is 86870653. The next prime is 86870723. The reversal of 86870713 is 31707868.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 46076944 + 40793769 = 6788^2 + 6387^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-86870713 is a prime.

It is not a weakly prime, because it can be changed into another prime (86870723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43435356 + 43435357.

It is an arithmetic number, because the mean of its divisors is an integer number (43435357).

Almost surely, 2^86870713 is an apocalyptic number.

It is an amenable number.

86870713 is a deficient number, since it is larger than the sum of its proper divisors (1).

86870713 is an equidigital number, since it uses as much as digits as its factorization.

86870713 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 56448, while the sum is 40.

The square root of 86870713 is about 9320.4459657250. The cubic root of 86870713 is about 442.8851603056.

The spelling of 86870713 in words is "eighty-six million, eight hundred seventy thousand, seven hundred thirteen".