6987904494 has 32 divisors (see below), whose sum is σ = 14641990656. Its totient is φ = 2220514560.

The previous prime is 6987904439. The next prime is 6987904513. The reversal of 6987904494 is 4944097896.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 267907 + ... + 292830.

It is an arithmetic number, because the mean of its divisors is an integer number (457562208).

Almost surely, 2^6987904494 is an apocalyptic number.

6987904494 is an abundant number, since it is smaller than the sum of its proper divisors (7654086162).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6987904494 is a wasteful number, since it uses less digits than its factorization.

6987904494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 560840.

The product of its (nonzero) digits is 15676416, while the sum is 60.

The square root of 6987904494 is about 83593.6869267052. The cubic root of 6987904494 is about 1911.8287441878.

The spelling of 6987904494 in words is "six billion, nine hundred eighty-seven million, nine hundred four thousand, four hundred ninety-four".