86504489 has 4 divisors (see below), whose sum is σ = 87689556. Its totient is φ = 85319424.

The previous prime is 86504461. The next prime is 86504507. The reversal of 86504489 is 98440568.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 42680089 + 43824400 = 6533^2 + 6620^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-86504489 is a prime.

It is a super-2 number, since 2×86504489² = 14966053234302242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86504189) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 592424 + ... + 592569.

It is an arithmetic number, because the mean of its divisors is an integer number (21922389).

Almost surely, 2^86504489 is an apocalyptic number.

It is an amenable number.

86504489 is a deficient number, since it is larger than the sum of its proper divisors (1185067).

86504489 is a wasteful number, since it uses less digits than its factorization.

86504489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1185066.

The product of its (nonzero) digits is 276480, while the sum is 44.

The square root of 86504489 is about 9300.7789458733. The cubic root of 86504489 is about 442.2619213617.

The spelling of 86504489 in words is "eighty-six million, five hundred four thousand, four hundred eighty-nine".