6987730 has 8 divisors (see below), whose sum is σ = 12577932. Its totient is φ = 2795088.

The previous prime is 6987727. The next prime is 6987737. The reversal of 6987730 is 377896.

It can be written as a sum of positive squares in 2 ways, for example, as 6964321 + 23409 = 2639^2 + 153^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (6987737) 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, 349377 + ... + 349396.

Almost surely, 2^6987730 is an apocalyptic number.

6987730 is a deficient number, since it is larger than the sum of its proper divisors (5590202).

6987730 is a wasteful number, since it uses less digits than its factorization.

6987730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 698780.

The product of its (nonzero) digits is 63504, while the sum is 40.

The square root of 6987730 is about 2643.4314819946. The cubic root of 6987730 is about 191.1812830718.

The spelling of 6987730 in words is "six million, nine hundred eighty-seven thousand, seven hundred thirty".