7798740 has 48 divisors (see below), whose sum is σ = 22989120. Its totient is φ = 1969920.

The previous prime is 7798729. The next prime is 7798741. The reversal of 7798740 is 478977.

It is a junction number, because it is equal to n+sod(n) for n = 7798692 and 7798701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7798741) by changing a digit.

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, 2281 + ... + 4560.

It is an arithmetic number, because the mean of its divisors is an integer number (478940).

Almost surely, 2^7798740 is an apocalyptic number.

It is an amenable number.

7798740 is an abundant number, since it is smaller than the sum of its proper divisors (15190380).

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

7798740 is a wasteful number, since it uses less digits than its factorization.

7798740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6872 (or 6870 counting only the distinct ones).

The product of its (nonzero) digits is 98784, while the sum is 42.

The square root of 7798740 is about 2792.6224234579. The cubic root of 7798740 is about 198.3085689643.

The spelling of 7798740 in words is "seven million, seven hundred ninety-eight thousand, seven hundred forty".