86434277 has 2 divisors, whose sum is σ = 86434278. Its totient is φ = 86434276.

The previous prime is 86434237. The next prime is 86434289. The reversal of 86434277 is 77243468.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 79459396 + 6974881 = 8914^2 + 2641^2 .

It is a cyclic number.

It is not a de Polignac number, because 86434277 - 2¹⁴ = 86417893 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86434217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43217138 + 43217139.

It is an arithmetic number, because the mean of its divisors is an integer number (43217139).

Almost surely, 2^86434277 is an apocalyptic number.

It is an amenable number.

86434277 is a deficient number, since it is larger than the sum of its proper divisors (1).

86434277 is an equidigital number, since it uses as much as digits as its factorization.

86434277 is an evil number, because the sum of its binary digits is even.

The product of its digits is 225792, while the sum is 41.

The square root of 86434277 is about 9297.0036570930. The cubic root of 86434277 is about 442.1422339351.

The spelling of 86434277 in words is "eighty-six million, four hundred thirty-four thousand, two hundred seventy-seven".