7328891 has 2 divisors, whose sum is σ = 7328892. Its totient is φ = 7328890.

The previous prime is 7328879. The next prime is 7328899. The reversal of 7328891 is 1988237.

It is a strong prime.

It is an emirp because it is prime and its reverse (1988237) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7328891 is a prime.

It is not a weakly prime, because it can be changed into another prime (7328899) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3664445 + 3664446.

It is an arithmetic number, because the mean of its divisors is an integer number (3664446).

Almost surely, 2^7328891 is an apocalyptic number.

7328891 is a deficient number, since it is larger than the sum of its proper divisors (1).

7328891 is an equidigital number, since it uses as much as digits as its factorization.

7328891 is an evil number, because the sum of its binary digits is even.

The product of its digits is 24192, while the sum is 38.

The square root of 7328891 is about 2707.1924571408. The cubic root of 7328891 is about 194.2433178262.

The spelling of 7328891 in words is "seven million, three hundred twenty-eight thousand, eight hundred ninety-one".