7366981 has 2 divisors, whose sum is σ = 7366982. Its totient is φ = 7366980.

The previous prime is 7366979. The next prime is 7366991. The reversal of 7366981 is 1896637.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6937956 + 429025 = 2634^2 + 655^2 .

It is a cyclic number.

It is not a de Polignac number, because 7366981 - 2¹ = 7366979 is a prime.

It is a super-2 number, since 2×7366981² = 108544818108722, which contains 22 as substring.

Together with 7366979, it forms a pair of twin primes.

7366981 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7366951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3683490 + 3683491.

It is an arithmetic number, because the mean of its divisors is an integer number (3683491).

Almost surely, 2^7366981 is an apocalyptic number.

It is an amenable number.

7366981 is a deficient number, since it is larger than the sum of its proper divisors (1).

7366981 is an equidigital number, since it uses as much as digits as its factorization.

7366981 is an evil number, because the sum of its binary digits is even.

The product of its digits is 54432, while the sum is 40.

The square root of 7366981 is about 2714.2183036742. The cubic root of 7366981 is about 194.5792461954.

The spelling of 7366981 in words is "seven million, three hundred sixty-six thousand, nine hundred eighty-one".