86019897 has 16 divisors (see below), whose sum is σ = 120968960. Its totient is φ = 54220752.

The previous prime is 86019883. The next prime is 86019911. The reversal of 86019897 is 79891068.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (86019883) and next prime (86019911).

It is not a de Polignac number, because 86019897 - 2⁶ = 86019833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86019877) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35478 + ... + 37824.

It is an arithmetic number, because the mean of its divisors is an integer number (7560560).

Almost surely, 2^86019897 is an apocalyptic number.

It is an amenable number.

86019897 is a deficient number, since it is larger than the sum of its proper divisors (34949063).

86019897 is a wasteful number, since it uses less digits than its factorization.

86019897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3012.

The product of its (nonzero) digits is 217728, while the sum is 48.

The square root of 86019897 is about 9274.6912077977. The cubic root of 86019897 is about 441.4345344940.

The spelling of 86019897 in words is "eighty-six million, nineteen thousand, eight hundred ninety-seven".