7381997 has 12 divisors (see below), whose sum is σ = 8700480. Its totient is φ = 6244056.

The previous prime is 7381967. The next prime is 7382003. The reversal of 7381997 is 7991837.

7381997 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 7381997 - 2⁸ = 7381741 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7381967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2918 + ... + 4824.

It is an arithmetic number, because the mean of its divisors is an integer number (725040).

Almost surely, 2^7381997 is an apocalyptic number.

It is an amenable number.

7381997 is a deficient number, since it is larger than the sum of its proper divisors (1318483).

7381997 is a wasteful number, since it uses less digits than its factorization.

7381997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2000 (or 1993 counting only the distinct ones).

The product of its digits is 95256, while the sum is 44.

The square root of 7381997 is about 2716.9830695093. The cubic root of 7381997 is about 194.7113590673.

The spelling of 7381997 in words is "seven million, three hundred eighty-one thousand, nine hundred ninety-seven".