622783487 has 2 divisors, whose sum is σ = 622783488. Its totient is φ = 622783486.

The previous prime is 622783477. The next prime is 622783531. The reversal of 622783487 is 784387226.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 622783487 - 2⁴ = 622783471 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (622783477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 311391743 + 311391744.

It is an arithmetic number, because the mean of its divisors is an integer number (311391744).

Almost surely, 2^622783487 is an apocalyptic number.

622783487 is a deficient number, since it is larger than the sum of its proper divisors (1).

622783487 is an equidigital number, since it uses as much as digits as its factorization.

622783487 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 903168, while the sum is 47.

The square root of 622783487 is about 24955.6303667128. The cubic root of 622783487 is about 853.9760604602.

The spelling of 622783487 in words is "six hundred twenty-two million, seven hundred eighty-three thousand, four hundred eighty-seven".