806667580 has 48 divisors (see below), whose sum is σ = 1746138240. Its totient is φ = 312864768.

The previous prime is 806667577. The next prime is 806667581. The reversal of 806667580 is 85766608.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 806667580.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (806667581) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 98524 + ... + 106396.

It is an arithmetic number, because the mean of its divisors is an integer number (36377880).

Almost surely, 2^806667580 is an apocalyptic number.

It is an amenable number.

806667580 is an abundant number, since it is smaller than the sum of its proper divisors (939470660).

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

806667580 is a wasteful number, since it uses less digits than its factorization.

806667580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8038 (or 8036 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 46.

The square root of 806667580 is about 28401.8939509322. The cubic root of 806667580 is about 930.8896485458.

The spelling of 806667580 in words is "eight hundred six million, six hundred sixty-seven thousand, five hundred eighty".