86782122 has 24 divisors (see below), whose sum is σ = 214889376. Its totient is φ = 24794856.

The previous prime is 86782103. The next prime is 86782141. The reversal of 86782122 is 22128768.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (86782103) and next prime (86782141).

It is a super-2 number, since 2×86782122² = 15062273397645768, which contains 22 as substring.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 344248 + ... + 344499.

It is an arithmetic number, because the mean of its divisors is an integer number (8953724).

Almost surely, 2^86782122 is an apocalyptic number.

86782122 is an abundant number, since it is smaller than the sum of its proper divisors (128107254).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

86782122 is a wasteful number, since it uses less digits than its factorization.

86782122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 688762 (or 688759 counting only the distinct ones).

The product of its digits is 21504, while the sum is 36.

The square root of 86782122 is about 9315.6922448093. The cubic root of 86782122 is about 442.7345572505.

The spelling of 86782122 in words is "eighty-six million, seven hundred eighty-two thousand, one hundred twenty-two".