7791340 has 12 divisors (see below), whose sum is σ = 16361856. Its totient is φ = 3116528.

The previous prime is 7791337. The next prime is 7791373. The reversal of 7791340 is 431977.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 194764 + ... + 194803.

It is an arithmetic number, because the mean of its divisors is an integer number (1363488).

Almost surely, 2^7791340 is an apocalyptic number.

It is an amenable number.

7791340 is an abundant number, since it is smaller than the sum of its proper divisors (8570516).

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

7791340 is a wasteful number, since it uses less digits than its factorization.

7791340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 389576 (or 389574 counting only the distinct ones).

The product of its (nonzero) digits is 5292, while the sum is 31.

The square root of 7791340 is about 2791.2971894802. The cubic root of 7791340 is about 198.2458260166.

The spelling of 7791340 in words is "seven million, seven hundred ninety-one thousand, three hundred forty".