7381897 has 2 divisors, whose sum is σ = 7381898. Its totient is φ = 7381896.

The previous prime is 7381889. The next prime is 7381909. The reversal of 7381897 is 7981837.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6702921 + 678976 = 2589^2 + 824^2 .

It is an emirp because it is prime and its reverse (7981837) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7381897 - 2³ = 7381889 is a prime.

It is not a weakly prime, because it can be changed into another prime (7381837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3690948 + 3690949.

It is an arithmetic number, because the mean of its divisors is an integer number (3690949).

Almost surely, 2^7381897 is an apocalyptic number.

It is an amenable number.

7381897 is a deficient number, since it is larger than the sum of its proper divisors (1).

7381897 is an equidigital number, since it uses as much as digits as its factorization.

7381897 is an evil number, because the sum of its binary digits is even.

The product of its digits is 84672, while the sum is 43.

The square root of 7381897 is about 2716.9646666823. The cubic root of 7381897 is about 194.7104798461.

The spelling of 7381897 in words is "seven million, three hundred eighty-one thousand, eight hundred ninety-seven".