7851061 has 2 divisors, whose sum is σ = 7851062. Its totient is φ = 7851060.

The previous prime is 7851043. The next prime is 7851097. The reversal of 7851061 is 1601587.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7452900 + 398161 = 2730^2 + 631^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7851061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7851001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3925530 + 3925531.

It is an arithmetic number, because the mean of its divisors is an integer number (3925531).

Almost surely, 2^7851061 is an apocalyptic number.

It is an amenable number.

7851061 is a deficient number, since it is larger than the sum of its proper divisors (1).

7851061 is an equidigital number, since it uses as much as digits as its factorization.

7851061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1680, while the sum is 28.

The square root of 7851061 is about 2801.9744823963. The cubic root of 7851061 is about 198.7510586286.

The spelling of 7851061 in words is "seven million, eight hundred fifty-one thousand, sixty-one".