7842788 has 12 divisors (see below), whose sum is σ = 13749372. Its totient is φ = 3914400.

The previous prime is 7842787. The next prime is 7842803. The reversal of 7842788 is 8872487.

It is a happy number.

7842788 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 6310144 + 1532644 = 2512^2 + 1238^2 .

It is a super-2 number, since 2×7842788² = 123018647225888, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7842787) 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, 1406 + ... + 4202.

It is an arithmetic number, because the mean of its divisors is an integer number (1145781).

Almost surely, 2^7842788 is an apocalyptic number.

It is an amenable number.

7842788 is a deficient number, since it is larger than the sum of its proper divisors (5906584).

7842788 is a wasteful number, since it uses less digits than its factorization.

7842788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3502 (or 3500 counting only the distinct ones).

The product of its digits is 200704, while the sum is 44.

The square root of 7842788 is about 2800.4978128897. The cubic root of 7842788 is about 198.6812232526.

The spelling of 7842788 in words is "seven million, eight hundred forty-two thousand, seven hundred eighty-eight".