86261429 has 2 divisors, whose sum is σ = 86261430. Its totient is φ = 86261428.

The previous prime is 86261359. The next prime is 86261447. The reversal of 86261429 is 92416268.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 49984900 + 36276529 = 7070^2 + 6023^2 .

It is a cyclic number.

It is not a de Polignac number, because 86261429 - 2⁸ = 86261173 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 86261392 and 86261401.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86261489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43130714 + 43130715.

It is an arithmetic number, because the mean of its divisors is an integer number (43130715).

Almost surely, 2^86261429 is an apocalyptic number.

It is an amenable number.

86261429 is a deficient number, since it is larger than the sum of its proper divisors (1).

86261429 is an equidigital number, since it uses as much as digits as its factorization.

86261429 is an evil number, because the sum of its binary digits is even.

The product of its digits is 41472, while the sum is 38.

The square root of 86261429 is about 9287.7031067966. The cubic root of 86261429 is about 441.8473108133.

The spelling of 86261429 in words is "eighty-six million, two hundred sixty-one thousand, four hundred twenty-nine".