1113907993 has 8 divisors (see below), whose sum is σ = 1220390496. Its totient is φ = 1008295200.

The previous prime is 1113907981. The next prime is 1113907999. The reversal of 1113907993 is 3997093111.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1113907993 - 2⁵ = 1113907961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1113907999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 214743 + ... + 219868.

It is an arithmetic number, because the mean of its divisors is an integer number (152548812).

Almost surely, 2^1113907993 is an apocalyptic number.

It is an amenable number.

1113907993 is a deficient number, since it is larger than the sum of its proper divisors (106482503).

1113907993 is a wasteful number, since it uses less digits than its factorization.

1113907993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 434855.

The product of its (nonzero) digits is 45927, while the sum is 43.

The square root of 1113907993 is about 33375.2601937423. The cubic root of 1113907993 is about 1036.6124967071.

The spelling of 1113907993 in words is "one billion, one hundred thirteen million, nine hundred seven thousand, nine hundred ninety-three".