1093717987 has 8 divisors (see below), whose sum is σ = 1113176880. Its totient is φ = 1074289920.

The previous prime is 1093717951. The next prime is 1093718023. The reversal of 1093717987 is 7897173901.

It is an interprime number because it is at equal distance from previous prime (1093717951) and next prime (1093718023).

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1093717987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1093717907) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70923 + ... + 84955.

It is an arithmetic number, because the mean of its divisors is an integer number (139147110).

Almost surely, 2^1093717987 is an apocalyptic number.

1093717987 is a deficient number, since it is larger than the sum of its proper divisors (19458893).

1093717987 is a wasteful number, since it uses less digits than its factorization.

1093717987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15413.

The product of its (nonzero) digits is 666792, while the sum is 52.

The square root of 1093717987 is about 33071.4073936989. The cubic root of 1093717987 is about 1030.3112726860.

The spelling of 1093717987 in words is "one billion, ninety-three million, seven hundred seventeen thousand, nine hundred eighty-seven".