7987040 has 24 divisors (see below), whose sum is σ = 18869760. Its totient is φ = 3194752.

The previous prime is 7987037. The next prime is 7987043. The reversal of 7987040 is 407897.

It is an interprime number because it is at equal distance from previous prime (7987037) and next prime (7987043).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7987043) 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, 24800 + ... + 25119.

It is an arithmetic number, because the mean of its divisors is an integer number (786240).

Almost surely, 2^7987040 is an apocalyptic number.

It is an amenable number.

7987040 is an abundant number, since it is smaller than the sum of its proper divisors (10882720).

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

7987040 is a wasteful number, since it uses less digits than its factorization.

7987040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49934 (or 49926 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 35.

The square root of 7987040 is about 2826.1351701573. The cubic root of 7987040 is about 199.8919416275.

The spelling of 7987040 in words is "seven million, nine hundred eighty-seven thousand, forty".