7870867 has 2 divisors, whose sum is σ = 7870868. Its totient is φ = 7870866.

The previous prime is 7870823. The next prime is 7870879. The reversal of 7870867 is 7680787.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 7870867 - 2⁷ = 7870739 is a prime.

It is not a weakly prime, because it can be changed into another prime (7870817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3935433 + 3935434.

It is an arithmetic number, because the mean of its divisors is an integer number (3935434).

Almost surely, 2^7870867 is an apocalyptic number.

7870867 is a deficient number, since it is larger than the sum of its proper divisors (1).

7870867 is an equidigital number, since it uses as much as digits as its factorization.

7870867 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 131712, while the sum is 43.

The square root of 7870867 is about 2805.5065496270. The cubic root of 7870867 is about 198.9180491329.

The spelling of 7870867 in words is "seven million, eight hundred seventy thousand, eight hundred sixty-seven".