622148887 has 2 divisors, whose sum is σ = 622148888. Its totient is φ = 622148886.

The previous prime is 622148869. The next prime is 622148957. The reversal of 622148887 is 788841226.

It is a happy number.

622148887 is digitally balanced in base 2, 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 a de Polignac number, because none of the positive numbers 2^k-622148887 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (622148837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 311074443 + 311074444.

It is an arithmetic number, because the mean of its divisors is an integer number (311074444).

Almost surely, 2^622148887 is an apocalyptic number.

622148887 is a deficient number, since it is larger than the sum of its proper divisors (1).

622148887 is an equidigital number, since it uses as much as digits as its factorization.

622148887 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 344064, while the sum is 46.

The square root of 622148887 is about 24942.9125604850. The cubic root of 622148887 is about 853.6859021652.

The spelling of 622148887 in words is "six hundred twenty-two million, one hundred forty-eight thousand, eight hundred eighty-seven".