983895813 has 12 divisors (see below), whose sum is σ = 1422114720. Its totient is φ = 655500456.

The previous prime is 983895811. The next prime is 983895833. The reversal of 983895813 is 318598389.

It is not a de Polignac number, because 983895813 - 2¹ = 983895811 is a prime.

It is a super-3 number, since 3×983895813³ (a number of 28 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 983895813.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (983895811) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21031 + ... + 49092.

It is an arithmetic number, because the mean of its divisors is an integer number (118509560).

Almost surely, 2^983895813 is an apocalyptic number.

It is an amenable number.

983895813 is a deficient number, since it is larger than the sum of its proper divisors (438218907).

983895813 is a wasteful number, since it uses less digits than its factorization.

983895813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71688 (or 71685 counting only the distinct ones).

The product of its digits is 1866240, while the sum is 54.

The square root of 983895813 is about 31367.1135586302. The cubic root of 983895813 is about 994.6028609615.

The spelling of 983895813 in words is "nine hundred eighty-three million, eight hundred ninety-five thousand, eight hundred thirteen".