7256791 has 2 divisors, whose sum is σ = 7256792. Its totient is φ = 7256790.

The previous prime is 7256779. The next prime is 7256827. The reversal of 7256791 is 1976527.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 7256791 - 2¹¹ = 7254743 is a prime.

It is a super-2 number, since 2×7256791² = 105322031235362, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 7256791.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7256741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3628395 + 3628396.

It is an arithmetic number, because the mean of its divisors is an integer number (3628396).

Almost surely, 2^7256791 is an apocalyptic number.

7256791 is a deficient number, since it is larger than the sum of its proper divisors (1).

7256791 is an equidigital number, since it uses as much as digits as its factorization.

7256791 is an evil number, because the sum of its binary digits is even.

The product of its digits is 26460, while the sum is 37.

The square root of 7256791 is about 2693.8431654423. The cubic root of 7256791 is about 193.6042433415.

The spelling of 7256791 in words is "seven million, two hundred fifty-six thousand, seven hundred ninety-one".