7124891 has 2 divisors, whose sum is σ = 7124892. Its totient is φ = 7124890.

The previous prime is 7124879. The next prime is 7124903. The reversal of 7124891 is 1984217.

It is a balanced prime because it is at equal distance from previous prime (7124879) and next prime (7124903).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7124891 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (7124801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3562445 + 3562446.

It is an arithmetic number, because the mean of its divisors is an integer number (3562446).

Almost surely, 2^7124891 is an apocalyptic number.

7124891 is a deficient number, since it is larger than the sum of its proper divisors (1).

7124891 is an equidigital number, since it uses as much as digits as its factorization.

7124891 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4032, while the sum is 32.

The square root of 7124891 is about 2669.2491453590. The cubic root of 7124891 is about 192.4240753036.

The spelling of 7124891 in words is "seven million, one hundred twenty-four thousand, eight hundred ninety-one".