7438743 has 16 divisors (see below), whose sum is σ = 11868640. Its totient is φ = 4577472.

The previous prime is 7438727. The next prime is 7438759. The reversal of 7438743 is 3478347.

7438743 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (7438727) and next prime (7438759).

It is not a de Polignac number, because 7438743 - 2⁴ = 7438727 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7438698 and 7438707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7438793) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10246 + ... + 10947.

It is an arithmetic number, because the mean of its divisors is an integer number (741790).

Almost surely, 2^7438743 is an apocalyptic number.

7438743 is a deficient number, since it is larger than the sum of its proper divisors (4429897).

7438743 is a wasteful number, since it uses less digits than its factorization.

7438743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21215 (or 21209 counting only the distinct ones).

The product of its digits is 56448, while the sum is 36.

The square root of 7438743 is about 2727.4059103844. The cubic root of 7438743 is about 195.2090066698.

The spelling of 7438743 in words is "seven million, four hundred thirty-eight thousand, seven hundred forty-three".