1022858887 has 2 divisors, whose sum is σ = 1022858888. Its totient is φ = 1022858886.

The previous prime is 1022858849. The next prime is 1022858897. The reversal of 1022858887 is 7888582201.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1022858887 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1022858887.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1022858807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 511429443 + 511429444.

It is an arithmetic number, because the mean of its divisors is an integer number (511429444).

Almost surely, 2^1022858887 is an apocalyptic number.

1022858887 is a deficient number, since it is larger than the sum of its proper divisors (1).

1022858887 is an equidigital number, since it uses as much as digits as its factorization.

1022858887 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 573440, while the sum is 49.

The square root of 1022858887 is about 31982.1651393398. The cubic root of 1022858887 is about 1007.5622965131.

The spelling of 1022858887 in words is "one billion, twenty-two million, eight hundred fifty-eight thousand, eight hundred eighty-seven".