86424855 has 48 divisors (see below), whose sum is σ = 160991712. Its totient is φ = 39424000.

The previous prime is 86424853. The next prime is 86424857. The reversal of 86424855 is 55842468.

It is an interprime number because it is at equal distance from previous prime (86424853) and next prime (86424857).

It is not a de Polignac number, because 86424855 - 2¹ = 86424853 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86424851) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 29455 + ... + 32255.

It is an arithmetic number, because the mean of its divisors is an integer number (3353994).

Almost surely, 2^86424855 is an apocalyptic number.

86424855 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

86424855 is a deficient number, since it is larger than the sum of its proper divisors (74566857).

86424855 is a wasteful number, since it uses less digits than its factorization.

86424855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2848 (or 2837 counting only the distinct ones).

The product of its digits is 307200, while the sum is 42.

The square root of 86424855 is about 9296.4969208837. The cubic root of 86424855 is about 442.1261677183.

The spelling of 86424855 in words is "eighty-six million, four hundred twenty-four thousand, eight hundred fifty-five".