86782906 has 16 divisors (see below), whose sum is σ = 153901440. Its totient is φ = 35910000.

The previous prime is 86782879. The next prime is 86782907. The reversal of 86782906 is 60928768.

It is not an unprimeable number, because it can be changed into a prime (86782907) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 106470 + ... + 107281.

It is an arithmetic number, because the mean of its divisors is an integer number (9618840).

Almost surely, 2^86782906 is an apocalyptic number.

86782906 is a deficient number, since it is larger than the sum of its proper divisors (67118534).

86782906 is a wasteful number, since it uses less digits than its factorization.

86782906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213789.

The product of its (nonzero) digits is 290304, while the sum is 46.

The square root of 86782906 is about 9315.7343242495. The cubic root of 86782906 is about 442.7358904853.

The spelling of 86782906 in words is "eighty-six million, seven hundred eighty-two thousand, nine hundred six".