3421309987 has 8 divisors (see below), whose sum is σ = 3440523680. Its totient is φ = 3402138240.

The previous prime is 3421309981. The next prime is 3421310017. The reversal of 3421309987 is 7899031243.

3421309987 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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-3421309987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3421309981) 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, 160858 + ... + 180880.

It is an arithmetic number, because the mean of its divisors is an integer number (430065460).

Almost surely, 2^3421309987 is an apocalyptic number.

3421309987 is a deficient number, since it is larger than the sum of its proper divisors (19213693).

3421309987 is a wasteful number, since it uses less digits than its factorization.

3421309987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20973.

The product of its (nonzero) digits is 326592, while the sum is 46.

The square root of 3421309987 is about 58491.9651490698. The cubic root of 3421309987 is about 1506.8295960334.

The spelling of 3421309987 in words is "three billion, four hundred twenty-one million, three hundred nine thousand, nine hundred eighty-seven".