7887042 has 12 divisors (see below), whose sum is σ = 17088630. Its totient is φ = 2629008.

The previous prime is 7887041. The next prime is 7887053. The reversal of 7887042 is 2407887.

It can be written as a sum of positive squares in only one way, i.e., 6007401 + 1879641 = 2451^2 + 1371^2 .

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 7886988 and 7887006.

It is not an unprimeable number, because it can be changed into a prime (7887041) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 219067 + ... + 219102.

Almost surely, 2^7887042 is an apocalyptic number.

7887042 is an abundant number, since it is smaller than the sum of its proper divisors (9201588).

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

7887042 is a wasteful number, since it uses less digits than its factorization.

7887042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 438177 (or 438174 counting only the distinct ones).

The product of its (nonzero) digits is 25088, while the sum is 36.

The square root of 7887042 is about 2808.3877937350. The cubic root of 7887042 is about 199.0542178641.

The spelling of 7887042 in words is "seven million, eight hundred eighty-seven thousand, forty-two".