802490187 has 4 divisors (see below), whose sum is σ = 1069986920. Its totient is φ = 534993456.

The previous prime is 802490153. The next prime is 802490189. The reversal of 802490187 is 781094208.

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

It is not a de Polignac number, because 802490187 - 2¹¹ = 802488139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (802490189) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 133748362 + ... + 133748367.

It is an arithmetic number, because the mean of its divisors is an integer number (267496730).

Almost surely, 2^802490187 is an apocalyptic number.

802490187 is a deficient number, since it is larger than the sum of its proper divisors (267496733).

802490187 is a wasteful number, since it uses less digits than its factorization.

802490187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267496732.

The product of its (nonzero) digits is 32256, while the sum is 39.

The square root of 802490187 is about 28328.2577473448. The cubic root of 802490187 is about 929.2799710645.

The spelling of 802490187 in words is "eight hundred two million, four hundred ninety thousand, one hundred eighty-seven".