806785988 has 12 divisors (see below), whose sum is σ = 1414260540. Its totient is φ = 402711552.

The previous prime is 806785907. The next prime is 806786021. The reversal of 806785988 is 889587608.

It can be written as a sum of positive squares in 2 ways, for example, as 248314564 + 558471424 = 15758^2 + 23632^2 .

It is a super-4 number, since 4×806785988⁴ (a number of 37 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 167693 + ... + 172436.

It is an arithmetic number, because the mean of its divisors is an integer number (117855045).

Almost surely, 2^806785988 is an apocalyptic number.

It is an amenable number.

806785988 is a deficient number, since it is larger than the sum of its proper divisors (607474552).

806785988 is a wasteful number, since it uses less digits than its factorization.

806785988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340726 (or 340724 counting only the distinct ones).

The product of its (nonzero) digits is 7741440, while the sum is 59.

The square root of 806785988 is about 28403.9783833181. The cubic root of 806785988 is about 930.9351936963.

The spelling of 806785988 in words is "eight hundred six million, seven hundred eighty-five thousand, nine hundred eighty-eight".