806498649 has 48 divisors (see below), whose sum is σ = 1350782784. Its totient is φ = 458265600.

The previous prime is 806498647. The next prime is 806498653. The reversal of 806498649 is 946894608.

It is not a de Polignac number, because 806498649 - 2¹ = 806498647 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 806498595 and 806498604.

It is not an unprimeable number, because it can be changed into a prime (806498647) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 526014 + ... + 527544.

It is an arithmetic number, because the mean of its divisors is an integer number (28141308).

Almost surely, 2^806498649 is an apocalyptic number.

It is an amenable number.

806498649 is a deficient number, since it is larger than the sum of its proper divisors (544284135).

806498649 is a wasteful number, since it uses less digits than its factorization.

806498649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1878 (or 1875 counting only the distinct ones).

The product of its (nonzero) digits is 2985984, while the sum is 54.

The square root of 806498649 is about 28398.9198562199. The cubic root of 806498649 is about 930.8246622153.

It can be divided in two parts, 80649 and 8649, that added together give a palindrome (89298).

The spelling of 806498649 in words is "eight hundred six million, four hundred ninety-eight thousand, six hundred forty-nine".