7264991 has 2 divisors, whose sum is σ = 7264992. Its totient is φ = 7264990.

The previous prime is 7264963. The next prime is 7264997. The reversal of 7264991 is 1994627.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 7264991 - 2⁶ = 7264927 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7264997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3632495 + 3632496.

It is an arithmetic number, because the mean of its divisors is an integer number (3632496).

Almost surely, 2^7264991 is an apocalyptic number.

7264991 is a deficient number, since it is larger than the sum of its proper divisors (1).

7264991 is an equidigital number, since it uses as much as digits as its factorization.

7264991 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27216, while the sum is 38.

The square root of 7264991 is about 2695.3647248564. The cubic root of 7264991 is about 193.6771386109.

The spelling of 7264991 in words is "seven million, two hundred sixty-four thousand, nine hundred ninety-one".