1083401993 has 16 divisors (see below), whose sum is σ = 1180738944. Its totient is φ = 990232320.

The previous prime is 1083401953. The next prime is 1083402011. The reversal of 1083401993 is 3991043801.

It is a happy number.

It is not a de Polignac number, because 1083401993 - 2⁶ = 1083401929 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1083401933) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74171 + ... + 87567.

It is an arithmetic number, because the mean of its divisors is an integer number (73796184).

Almost surely, 2^1083401993 is an apocalyptic number.

It is an amenable number.

1083401993 is a deficient number, since it is larger than the sum of its proper divisors (97336951).

1083401993 is a wasteful number, since it uses less digits than its factorization.

1083401993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13552.

The product of its (nonzero) digits is 23328, while the sum is 38.

The square root of 1083401993 is about 32915.0724289041. The cubic root of 1083401993 is about 1027.0617214667.

The spelling of 1083401993 in words is "one billion, eighty-three million, four hundred one thousand, nine hundred ninety-three".