86429117 has 2 divisors, whose sum is σ = 86429118. Its totient is φ = 86429116.

The previous prime is 86429059. The next prime is 86429141. The reversal of 86429117 is 71192468.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 80174116 + 6255001 = 8954^2 + 2501^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-86429117 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86429177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43214558 + 43214559.

It is an arithmetic number, because the mean of its divisors is an integer number (43214559).

Almost surely, 2^86429117 is an apocalyptic number.

It is an amenable number.

86429117 is a deficient number, since it is larger than the sum of its proper divisors (1).

86429117 is an equidigital number, since it uses as much as digits as its factorization.

86429117 is an evil number, because the sum of its binary digits is even.

The product of its digits is 24192, while the sum is 38.

The square root of 86429117 is about 9296.7261441865. The cubic root of 86429117 is about 442.1334353450.

The spelling of 86429117 in words is "eighty-six million, four hundred twenty-nine thousand, one hundred seventeen".