806298149 has 4 divisors (see below), whose sum is σ = 811433964. Its totient is φ = 801162336.

The previous prime is 806298133. The next prime is 806298221. The reversal of 806298149 is 941892608.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 184144900 + 622153249 = 13570^2 + 24943^2 .

It is a cyclic number.

It is not a de Polignac number, because 806298149 - 2⁴ = 806298133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (806298109) 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 3 ways as a sum of consecutive naturals, for example, 2567672 + ... + 2567985.

It is an arithmetic number, because the mean of its divisors is an integer number (202858491).

Almost surely, 2^806298149 is an apocalyptic number.

It is an amenable number.

806298149 is a deficient number, since it is larger than the sum of its proper divisors (5135815).

806298149 is a wasteful number, since it uses less digits than its factorization.

806298149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5135814.

The product of its (nonzero) digits is 248832, while the sum is 47.

The square root of 806298149 is about 28395.3895729571. The cubic root of 806298149 is about 930.7475197787.

The spelling of 806298149 in words is "eight hundred six million, two hundred ninety-eight thousand, one hundred forty-nine".