7874851 has 2 divisors, whose sum is σ = 7874852. Its totient is φ = 7874850.

The previous prime is 7874849. The next prime is 7874861. The reversal of 7874851 is 1584787.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 7874851 - 2¹ = 7874849 is a prime.

Together with 7874849, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (7874861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3937425 + 3937426.

It is an arithmetic number, because the mean of its divisors is an integer number (3937426).

Almost surely, 2^7874851 is an apocalyptic number.

7874851 is a deficient number, since it is larger than the sum of its proper divisors (1).

7874851 is an equidigital number, since it uses as much as digits as its factorization.

7874851 is an evil number, because the sum of its binary digits is even.

The product of its digits is 62720, while the sum is 40.

The square root of 7874851 is about 2806.2164920048. The cubic root of 7874851 is about 198.9516056154.

Subtracting from 7874851 its reverse (1584787), we obtain a square (6290064 = 2508²).

The spelling of 7874851 in words is "seven million, eight hundred seventy-four thousand, eight hundred fifty-one".