7256743 has 8 divisors (see below), whose sum is σ = 7943936. Its totient is φ = 6588000.

The previous prime is 7256741. The next prime is 7256771. The reversal of 7256743 is 3476527.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 7256743 - 2¹ = 7256741 is a prime.

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

It is a junction number, because it is equal to n+sod(n) for n = 7256699 and 7256708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7256741) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3783 + ... + 5368.

It is an arithmetic number, because the mean of its divisors is an integer number (992992).

Almost surely, 2^7256743 is an apocalyptic number.

7256743 is a deficient number, since it is larger than the sum of its proper divisors (687193).

7256743 is a wasteful number, since it uses less digits than its factorization.

7256743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9225.

The product of its digits is 35280, while the sum is 34.

The square root of 7256743 is about 2693.8342562229. The cubic root of 7256743 is about 193.6038164759.

The spelling of 7256743 in words is "seven million, two hundred fifty-six thousand, seven hundred forty-three".