7343981 has 2 divisors, whose sum is σ = 7343982. Its totient is φ = 7343980.

The previous prime is 7343977. The next prime is 7344011. The reversal of 7343981 is 1893437.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7155625 + 188356 = 2675^2 + 434^2 .

It is a cyclic number.

It is not a de Polignac number, because 7343981 - 2² = 7343977 is a prime.

It is a super-2 number, since 2×7343981² = 107868113856722, which contains 22 as substring.

It is equal to p₄₉₈₄₁₉ and since 7343981 and 498419 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7343951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3671990 + 3671991.

It is an arithmetic number, because the mean of its divisors is an integer number (3671991).

Almost surely, 2^7343981 is an apocalyptic number.

It is an amenable number.

7343981 is a deficient number, since it is larger than the sum of its proper divisors (1).

7343981 is an equidigital number, since it uses as much as digits as its factorization.

7343981 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18144, while the sum is 35.

The square root of 7343981 is about 2709.9780441915. The cubic root of 7343981 is about 194.3765404495.

The spelling of 7343981 in words is "seven million, three hundred forty-three thousand, nine hundred eighty-one".