7381791 has 12 divisors (see below), whose sum is σ = 11290032. Its totient is φ = 4631616.

The previous prime is 7381789. The next prime is 7381819. The reversal of 7381791 is 1971837.

It is not a de Polignac number, because 7381791 - 2¹ = 7381789 is a prime.

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 a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7381711) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23971 + ... + 24276.

It is an arithmetic number, because the mean of its divisors is an integer number (940836).

Almost surely, 2^7381791 is an apocalyptic number.

7381791 is a deficient number, since it is larger than the sum of its proper divisors (3908241).

7381791 is a wasteful number, since it uses less digits than its factorization.

7381791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48270 (or 48267 counting only the distinct ones).

The product of its digits is 10584, while the sum is 36.

The square root of 7381791 is about 2716.9451595496. The cubic root of 7381791 is about 194.7095478630.

The spelling of 7381791 in words is "seven million, three hundred eighty-one thousand, seven hundred ninety-one".