1022983893 has 12 divisors (see below), whose sum is σ = 1477934380. Its totient is φ = 681854976.

The previous prime is 1022983867. The next prime is 1022983909. The reversal of 1022983893 is 3983892201.

It can be written as a sum of positive squares in 2 ways, for example, as 312334929 + 710648964 = 17673^2 + 26658^2 .

It is not a de Polignac number, because 1022983893 - 2⁵ = 1022983861 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1022983393) 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, 62805 + ... + 77397.

Almost surely, 2^1022983893 is an apocalyptic number.

It is an amenable number.

1022983893 is a deficient number, since it is larger than the sum of its proper divisors (454950487).

1022983893 is a wasteful number, since it uses less digits than its factorization.

1022983893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22388 (or 22385 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 45.

The square root of 1022983893 is about 31984.1193875961. The cubic root of 1022983893 is about 1007.6033403636.

The spelling of 1022983893 in words is "one billion, twenty-two million, nine hundred eighty-three thousand, eight hundred ninety-three".