7797887 has 2 divisors, whose sum is σ = 7797888. Its totient is φ = 7797886.

The previous prime is 7797877. The next prime is 7797899. The reversal of 7797887 is 7887977.

7797887 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 7797887 - 2⁸ = 7797631 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7797877) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3898943 + 3898944.

It is an arithmetic number, because the mean of its divisors is an integer number (3898944).

Almost surely, 2^7797887 is an apocalyptic number.

7797887 is a deficient number, since it is larger than the sum of its proper divisors (1).

7797887 is an equidigital number, since it uses as much as digits as its factorization.

7797887 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1382976, while the sum is 53.

The square root of 7797887 is about 2792.4696954488. The cubic root of 7797887 is about 198.3013385921.

It can be divided in two parts, 77978 and 87, that multiplied together give a triangular number (6784086 = T₃₆₈₃).

The spelling of 7797887 in words is "seven million, seven hundred ninety-seven thousand, eight hundred eighty-seven".