86487519 has 4 divisors (see below), whose sum is σ = 115316696. Its totient is φ = 57658344.

The previous prime is 86487509. The next prime is 86487523. The reversal of 86487519 is 91578468.

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

It is not a de Polignac number, because 86487519 - 2⁷ = 86487391 is a prime.

It is a super-2 number, since 2×86487519² = 14960181885550722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86487509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14414584 + ... + 14414589.

It is an arithmetic number, because the mean of its divisors is an integer number (28829174).

Almost surely, 2^86487519 is an apocalyptic number.

86487519 is a deficient number, since it is larger than the sum of its proper divisors (28829177).

86487519 is a wasteful number, since it uses less digits than its factorization.

86487519 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28829176.

The product of its digits is 483840, while the sum is 48.

The square root of 86487519 is about 9299.8666119466. The cubic root of 86487519 is about 442.2329992571.

The spelling of 86487519 in words is "eighty-six million, four hundred eighty-seven thousand, five hundred nineteen".