86349619 has 2 divisors, whose sum is σ = 86349620. Its totient is φ = 86349618.

The previous prime is 86349589. The next prime is 86349629. The reversal of 86349619 is 91694368.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 86349619 - 2¹³ = 86341427 is a prime.

It is a super-2 number, since 2×86349619² = 14912513402890322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (86349629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43174809 + 43174810.

It is an arithmetic number, because the mean of its divisors is an integer number (43174810).

Almost surely, 2^86349619 is an apocalyptic number.

86349619 is a deficient number, since it is larger than the sum of its proper divisors (1).

86349619 is an equidigital number, since it uses as much as digits as its factorization.

86349619 is an evil number, because the sum of its binary digits is even.

The product of its digits is 279936, while the sum is 46.

The square root of 86349619 is about 9292.4495694085. The cubic root of 86349619 is about 441.9978348003.

It can be divided in two parts, 86349 and 619, that added together give a palindrome (86968).

The spelling of 86349619 in words is "eighty-six million, three hundred forty-nine thousand, six hundred nineteen".