7804942 has 4 divisors (see below), whose sum is σ = 11707416. Its totient is φ = 3902470.

The previous prime is 7804913. The next prime is 7804949. The reversal of 7804942 is 2494087.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 7804898 and 7804907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7804949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1951234 + ... + 1951237.

It is an arithmetic number, because the mean of its divisors is an integer number (2926854).

Almost surely, 2^7804942 is an apocalyptic number.

7804942 is a deficient number, since it is larger than the sum of its proper divisors (3902474).

7804942 is a wasteful number, since it uses less digits than its factorization.

7804942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3902473.

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 7804942 is about 2793.7326285813. The cubic root of 7804942 is about 198.3611237726.

The spelling of 7804942 in words is "seven million, eight hundred four thousand, nine hundred forty-two".