7433681 has 2 divisors, whose sum is σ = 7433682. Its totient is φ = 7433680.

The previous prime is 7433659. The next prime is 7433683. The reversal of 7433681 is 1863347.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6451600 + 982081 = 2540^2 + 991^2 .

It is an emirp because it is prime and its reverse (1863347) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7433681 - 2²² = 3239377 is a prime.

It is a super-2 number, since 2×7433681² = 110519226419522, which contains 22 as substring.

Together with 7433683, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (7433683) 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 as a sum of consecutive naturals, namely, 3716840 + 3716841.

It is an arithmetic number, because the mean of its divisors is an integer number (3716841).

Almost surely, 2^7433681 is an apocalyptic number.

It is an amenable number.

7433681 is a deficient number, since it is larger than the sum of its proper divisors (1).

7433681 is an equidigital number, since it uses as much as digits as its factorization.

7433681 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12096, while the sum is 32.

The square root of 7433681 is about 2726.4777644426. The cubic root of 7433681 is about 195.1647172776.

The spelling of 7433681 in words is "seven million, four hundred thirty-three thousand, six hundred eighty-one".