86348569 has 2 divisors, whose sum is σ = 86348570. Its totient is φ = 86348568.

The previous prime is 86348551. The next prime is 86348579. The reversal of 86348569 is 96584368.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 83905600 + 2442969 = 9160^2 + 1563^2 .

It is a cyclic number.

It is not a de Polignac number, because 86348569 - 2⁷ = 86348441 is a prime.

It is a super-2 number, since 2×86348569² = 14912150736695522, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (86348579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43174284 + 43174285.

It is an arithmetic number, because the mean of its divisors is an integer number (43174285).

Almost surely, 2^86348569 is an apocalyptic number.

It is an amenable number.

86348569 is a deficient number, since it is larger than the sum of its proper divisors (1).

86348569 is an equidigital number, since it uses as much as digits as its factorization.

86348569 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1244160, while the sum is 49.

The square root of 86348569 is about 9292.3930717550. The cubic root of 86348569 is about 441.9960432479.

The spelling of 86348569 in words is "eighty-six million, three hundred forty-eight thousand, five hundred sixty-nine".