6409341987 has 4 divisors (see below), whose sum is σ = 8545789320. Its totient is φ = 4272894656.

The previous prime is 6409341973. The next prime is 6409342061. The reversal of 6409341987 is 7891439046.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6409341987 - 2⁴ = 6409341971 is a prime.

It is a super-2 number, since 2×6409341987² = 82159329412642216338, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6409341907) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1068223662 + ... + 1068223667.

It is an arithmetic number, because the mean of its divisors is an integer number (2136447330).

Almost surely, 2^6409341987 is an apocalyptic number.

6409341987 is a deficient number, since it is larger than the sum of its proper divisors (2136447333).

6409341987 is a wasteful number, since it uses less digits than its factorization.

6409341987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2136447332.

The product of its (nonzero) digits is 1306368, while the sum is 51.

The square root of 6409341987 is about 80058.3661274698. The cubic root of 6409341987 is about 1857.5384622265.

The spelling of 6409341987 in words is "six billion, four hundred nine million, three hundred forty-one thousand, nine hundred eighty-seven".