806898780 has 48 divisors (see below), whose sum is σ = 2510353440. Its totient is φ = 215172864.

The previous prime is 806898751. The next prime is 806898793. The reversal of 806898780 is 87898608.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 746589 + ... + 747668.

It is an arithmetic number, because the mean of its divisors is an integer number (52299030).

Almost surely, 2^806898780 is an apocalyptic number.

It is an amenable number.

806898780 is an abundant number, since it is smaller than the sum of its proper divisors (1703454660).

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

806898780 is a wasteful number, since it uses less digits than its factorization.

806898780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1494275 (or 1494267 counting only the distinct ones).

The product of its (nonzero) digits is 1548288, while the sum is 54.

The square root of 806898780 is about 28405.9638104395. The cubic root of 806898780 is about 930.9785745313.

The spelling of 806898780 in words is "eight hundred six million, eight hundred ninety-eight thousand, seven hundred eighty".