801495889 has 8 divisors (see below), whose sum is σ = 848891880. Its totient is φ = 754127616.

The previous prime is 801495853. The next prime is 801495901. The reversal of 801495889 is 988594108.

It can be written as a sum of positive squares in 4 ways, for example, as 84327489 + 717168400 = 9183^2 + 26780^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 801495889 - 2¹¹ = 801493841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (801495389) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99007 + ... + 106795.

It is an arithmetic number, because the mean of its divisors is an integer number (106111485).

Almost surely, 2^801495889 is an apocalyptic number.

It is an amenable number.

801495889 is a deficient number, since it is larger than the sum of its proper divisors (47395991).

801495889 is a wasteful number, since it uses less digits than its factorization.

801495889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13859.

The product of its (nonzero) digits is 829440, while the sum is 52.

The square root of 801495889 is about 28310.7027288268. The cubic root of 801495889 is about 928.8960149308.

The spelling of 801495889 in words is "eight hundred one million, four hundred ninety-five thousand, eight hundred eighty-nine".