85868415 has 24 divisors (see below), whose sum is σ = 149836128. Its totient is φ = 45489600.

The previous prime is 85868413. The next prime is 85868437. The reversal of 85868415 is 51486858.

It is not a de Polignac number, because 85868415 - 2¹ = 85868413 is a prime.

It is a super-2 number, since 2×85868415² = 14746769389224450, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85868413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 477 + ... + 13113.

It is an arithmetic number, because the mean of its divisors is an integer number (6243172).

Almost surely, 2^85868415 is an apocalyptic number.

85868415 is a deficient number, since it is larger than the sum of its proper divisors (63967713).

85868415 is a wasteful number, since it uses less digits than its factorization.

85868415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12799 (or 12796 counting only the distinct ones).

The product of its digits is 307200, while the sum is 45.

The square root of 85868415 is about 9266.5211919037. The cubic root of 85868415 is about 441.1752585222.

The spelling of 85868415 in words is "eighty-five million, eight hundred sixty-eight thousand, four hundred fifteen".