6959987 has 6 divisors (see below), whose sum is σ = 7393788. Its totient is φ = 6550304.

The previous prime is 6959983. The next prime is 6959989. The reversal of 6959987 is 7899596.

It is not a de Polignac number, because 6959987 - 2² = 6959983 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6959983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11753 + ... + 12330.

It is an arithmetic number, because the mean of its divisors is an integer number (1232298).

Almost surely, 2^6959987 is an apocalyptic number.

6959987 is a deficient number, since it is larger than the sum of its proper divisors (433801).

6959987 is a wasteful number, since it uses less digits than its factorization.

6959987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24117 (or 24100 counting only the distinct ones).

The product of its digits is 1224720, while the sum is 53.

The square root of 6959987 is about 2638.1787278348. The cubic root of 6959987 is about 190.9279353143.

The spelling of 6959987 in words is "six million, nine hundred fifty-nine thousand, nine hundred eighty-seven".