86401889 has 8 divisors (see below), whose sum is σ = 98996928. Its totient is φ = 73869840.

The previous prime is 86401853. The next prime is 86401897. The reversal of 86401889 is 98810468.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 86401889 - 2²⁰ = 85353313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86401789) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12767 + ... + 18324.

It is an arithmetic number, because the mean of its divisors is an integer number (12374616).

Almost surely, 2^86401889 is an apocalyptic number.

It is an amenable number.

86401889 is a deficient number, since it is larger than the sum of its proper divisors (12595039).

86401889 is a wasteful number, since it uses less digits than its factorization.

86401889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31495.

The product of its (nonzero) digits is 110592, while the sum is 44.

The square root of 86401889 is about 9295.2616423638. The cubic root of 86401889 is about 442.0870016354.

The spelling of 86401889 in words is "eighty-six million, four hundred one thousand, eight hundred eighty-nine".