86786415 has 48 divisors (see below), whose sum is σ = 157921920. Its totient is φ = 44029440.

The previous prime is 86786407. The next prime is 86786419. The reversal of 86786415 is 51468768.

It is a happy number.

It is not a de Polignac number, because 86786415 - 2³ = 86786407 is a prime.

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

Its product of digits (322560) is a multiple of the sum of its prime factors (1024).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86786419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 94810 + ... + 95720.

It is an arithmetic number, because the mean of its divisors is an integer number (3290040).

Almost surely, 2^86786415 is an apocalyptic number.

86786415 is a deficient number, since it is larger than the sum of its proper divisors (71135505).

86786415 is a wasteful number, since it uses less digits than its factorization.

86786415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1024 (or 1021 counting only the distinct ones).

The product of its digits is 322560, while the sum is 45.

The square root of 86786415 is about 9315.9226596189. The cubic root of 86786415 is about 442.7418576332.

The spelling of 86786415 in words is "eighty-six million, seven hundred eighty-six thousand, four hundred fifteen".