6801987 has 8 divisors (see below), whose sum is σ = 9109840. Its totient is φ = 4514400.

The previous prime is 6801983. The next prime is 6802001. The reversal of 6801987 is 7891086.

6801987 is digitally balanced in base 4, 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 not a de Polignac number, because 6801987 - 2² = 6801983 is a prime.

It is a Duffinian number.

6801987 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (6801983) 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, 4264 + ... + 5637.

It is an arithmetic number, because the mean of its divisors is an integer number (1138730).

Almost surely, 2^6801987 is an apocalyptic number.

6801987 is a deficient number, since it is larger than the sum of its proper divisors (2307853).

6801987 is a wasteful number, since it uses less digits than its factorization.

6801987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10133.

The product of its (nonzero) digits is 24192, while the sum is 39.

The square root of 6801987 is about 2608.0619241115. The cubic root of 6801987 is about 189.4720987968.

The spelling of 6801987 in words is "six million, eight hundred one thousand, nine hundred eighty-seven".