3992999587 has 8 divisors (see below), whose sum is σ = 4225167360. Its totient is φ = 3763032840.

The previous prime is 3992999567. The next prime is 3992999611. The reversal of 3992999587 is 7859992993.

It is a happy number.

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

It is a de Polignac number, because none of the positive numbers 2^k-3992999587 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3992999567) 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, 546523 + ... + 553780.

It is an arithmetic number, because the mean of its divisors is an integer number (528145920).

Almost surely, 2^3992999587 is an apocalyptic number.

3992999587 is a deficient number, since it is larger than the sum of its proper divisors (232167773).

3992999587 is a wasteful number, since it uses less digits than its factorization.

3992999587 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1100513.

The product of its digits is 99202320, while the sum is 70.

The square root of 3992999587 is about 63190.1858440059. The cubic root of 3992999587 is about 1586.4744726413.

The spelling of 3992999587 in words is "three billion, nine hundred ninety-two million, nine hundred ninety-nine thousand, five hundred eighty-seven".