6987494827 has 4 divisors (see below), whose sum is σ = 6988173120. Its totient is φ = 6986816536.

The previous prime is 6987494821. The next prime is 6987494831. The reversal of 6987494827 is 7284947896.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6987494827 is a prime.

It is a super-3 number, since 3×6987494827³ (a number of 31 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6987494821) 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, 323452 + ... + 344377.

It is an arithmetic number, because the mean of its divisors is an integer number (1747043280).

Almost surely, 2^6987494827 is an apocalyptic number.

6987494827 is a deficient number, since it is larger than the sum of its proper divisors (678293).

6987494827 is a wasteful number, since it uses less digits than its factorization.

6987494827 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 678292.

The product of its digits is 48771072, while the sum is 64.

The square root of 6987494827 is about 83591.2365442694. The cubic root of 6987494827 is about 1911.7913830374.

The spelling of 6987494827 in words is "six billion, nine hundred eighty-seven million, four hundred ninety-four thousand, eight hundred twenty-seven".