6987725 has 24 divisors (see below), whose sum is σ = 9344640. Its totient is φ = 5166720.

The previous prime is 6987719. The next prime is 6987727. The reversal of 6987725 is 5277896.

It is not a de Polignac number, because 6987725 - 2⁶ = 6987661 is a prime.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6987727) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22169 + ... + 22481.

It is an arithmetic number, because the mean of its divisors is an integer number (389360).

Almost surely, 2^6987725 is an apocalyptic number.

It is an amenable number.

6987725 is a deficient number, since it is larger than the sum of its proper divisors (2356915).

6987725 is a wasteful number, since it uses less digits than its factorization.

6987725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 389 (or 384 counting only the distinct ones).

The product of its digits is 211680, while the sum is 44.

The square root of 6987725 is about 2643.4305362540. The cubic root of 6987725 is about 191.1812374725.

The spelling of 6987725 in words is "six million, nine hundred eighty-seven thousand, seven hundred twenty-five".