86783706 has 12 divisors (see below), whose sum is σ = 188031402. Its totient is φ = 28927896.

The previous prime is 86783651. The next prime is 86783707. The reversal of 86783706 is 60738768.

It can be written as a sum of positive squares in only one way, i.e., 70308225 + 16475481 = 8385^2 + 4059^2 .

It is not an unprimeable number, because it can be changed into a prime (86783707) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2410641 + ... + 2410676.

Almost surely, 2^86783706 is an apocalyptic number.

86783706 is an abundant number, since it is smaller than the sum of its proper divisors (101247696).

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

86783706 is a wasteful number, since it uses less digits than its factorization.

86783706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4821325 (or 4821322 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 45.

The square root of 86783706 is about 9315.7772622578. Note that the first 3 decimals coincide. The cubic root of 86783706 is about 442.7372509208.

The spelling of 86783706 in words is "eighty-six million, seven hundred eighty-three thousand, seven hundred six".