86134849 has 2 divisors, whose sum is σ = 86134850. Its totient is φ = 86134848.

The previous prime is 86134831. The next prime is 86134859. The reversal of 86134849 is 94843168.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 67125249 + 19009600 = 8193^2 + 4360^2 .

It is a cyclic number.

It is not a de Polignac number, because 86134849 - 2⁷ = 86134721 is a prime.

It is not a weakly prime, because it can be changed into another prime (86134819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43067424 + 43067425.

It is an arithmetic number, because the mean of its divisors is an integer number (43067425).

Almost surely, 2^86134849 is an apocalyptic number.

It is an amenable number.

86134849 is a deficient number, since it is larger than the sum of its proper divisors (1).

86134849 is an equidigital number, since it uses as much as digits as its factorization.

86134849 is an evil number, because the sum of its binary digits is even.

The product of its digits is 165888, while the sum is 43.

The square root of 86134849 is about 9280.8862184600. The cubic root of 86134849 is about 441.6310828023.

The spelling of 86134849 in words is "eighty-six million, one hundred thirty-four thousand, eight hundred forty-nine".