86047405 has 4 divisors (see below), whose sum is σ = 103256892. Its totient is φ = 68837920.

The previous prime is 86047399. The next prime is 86047411. The reversal of 86047405 is 50474068.

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

It is an interprime number because it is at equal distance from previous prime (86047399) and next prime (86047411).

It can be written as a sum of positive squares in 2 ways, for example, as 19412836 + 66634569 = 4406^2 + 8163^2 .

It is not a de Polignac number, because 86047405 - 2⁹ = 86046893 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8604736 + ... + 8604745.

It is an arithmetic number, because the mean of its divisors is an integer number (25814223).

Almost surely, 2^86047405 is an apocalyptic number.

It is an amenable number.

86047405 is a deficient number, since it is larger than the sum of its proper divisors (17209487).

86047405 is a wasteful number, since it uses less digits than its factorization.

86047405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17209486.

The product of its (nonzero) digits is 26880, while the sum is 34.

The square root of 86047405 is about 9276.1740496823. The cubic root of 86047405 is about 441.4815844109.

The spelling of 86047405 in words is "eighty-six million, forty-seven thousand, four hundred five".