86524813 has 4 divisors (see below), whose sum is σ = 89315968. Its totient is φ = 83733660.

The previous prime is 86524811. The next prime is 86524817. The reversal of 86524813 is 31842568.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 86524813 - 2¹ = 86524811 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86524811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1395531 + ... + 1395592.

It is an arithmetic number, because the mean of its divisors is an integer number (22328992).

Almost surely, 2^86524813 is an apocalyptic number.

It is an amenable number.

86524813 is a deficient number, since it is larger than the sum of its proper divisors (2791155).

86524813 is a wasteful number, since it uses less digits than its factorization.

86524813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2791154.

The product of its digits is 46080, while the sum is 37.

The square root of 86524813 is about 9301.8714783639. The cubic root of 86524813 is about 442.2965547375.

The spelling of 86524813 in words is "eighty-six million, five hundred twenty-four thousand, eight hundred thirteen".