7097861 has 2 divisors, whose sum is σ = 7097862. Its totient is φ = 7097860.

The previous prime is 7097819. The next prime is 7097873. The reversal of 7097861 is 1687907.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5909761 + 1188100 = 2431^2 + 1090^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7097861 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7097801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3548930 + 3548931.

It is an arithmetic number, because the mean of its divisors is an integer number (3548931).

Almost surely, 2^7097861 is an apocalyptic number.

It is an amenable number.

7097861 is a deficient number, since it is larger than the sum of its proper divisors (1).

7097861 is an equidigital number, since it uses as much as digits as its factorization.

7097861 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21168, while the sum is 38.

The square root of 7097861 is about 2664.1811124621. The cubic root of 7097861 is about 192.1804311543.

The spelling of 7097861 in words is "seven million, ninety-seven thousand, eight hundred sixty-one".