6900987 has 16 divisors (see below), whose sum is σ = 9434880. Its totient is φ = 4485600.

The previous prime is 6900977. The next prime is 6901007. The reversal of 6900987 is 7890096.

It is not a de Polignac number, because 6900987 - 2⁶ = 6900923 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6900917) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38037 + ... + 38217.

It is an arithmetic number, because the mean of its divisors is an integer number (589680).

Almost surely, 2^6900987 is an apocalyptic number.

6900987 is a deficient number, since it is larger than the sum of its proper divisors (2533893).

6900987 is a wasteful number, since it uses less digits than its factorization.

6900987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 434.

The product of its (nonzero) digits is 27216, while the sum is 39.

The square root of 6900987 is about 2626.9729728339. The cubic root of 6900987 is about 190.3869031990.

It can be divided in two parts, 69009 and 87, that added together give a palindrome (69096).

The spelling of 6900987 in words is "six million, nine hundred thousand, nine hundred eighty-seven".