1083403963 has 4 divisors (see below), whose sum is σ = 1108599448. Its totient is φ = 1058208480.

The previous prime is 1083403943. The next prime is 1083404009. The reversal of 1083403963 is 3693043801.

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

It is a cyclic number.

It is not a de Polignac number, because 1083403963 - 2¹⁷ = 1083272891 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1083403913) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12597678 + ... + 12597763.

It is an arithmetic number, because the mean of its divisors is an integer number (277149862).

Almost surely, 2^1083403963 is an apocalyptic number.

1083403963 is a deficient number, since it is larger than the sum of its proper divisors (25195485).

1083403963 is an equidigital number, since it uses as much as digits as its factorization.

1083403963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25195484.

The product of its (nonzero) digits is 46656, while the sum is 37.

The square root of 1083403963 is about 32915.1023543905. The cubic root of 1083403963 is about 1027.0623439843.

The spelling of 1083403963 in words is "one billion, eighty-three million, four hundred three thousand, nine hundred sixty-three".