7851941 has 2 divisors, whose sum is σ = 7851942. Its totient is φ = 7851940.

The previous prime is 7851937. The next prime is 7851967. The reversal of 7851941 is 1491587.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5387041 + 2464900 = 2321^2 + 1570^2 .

It is an emirp because it is prime and its reverse (1491587) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7851941 - 2² = 7851937 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7851341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3925970 + 3925971.

It is an arithmetic number, because the mean of its divisors is an integer number (3925971).

Almost surely, 2^7851941 is an apocalyptic number.

It is an amenable number.

7851941 is a deficient number, since it is larger than the sum of its proper divisors (1).

7851941 is an equidigital number, since it uses as much as digits as its factorization.

7851941 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10080, while the sum is 35.

The square root of 7851941 is about 2802.1315101187. The cubic root of 7851941 is about 198.7584841387.

The spelling of 7851941 in words is "seven million, eight hundred fifty-one thousand, nine hundred forty-one".