622304387 has 2 divisors, whose sum is σ = 622304388. Its totient is φ = 622304386.

The previous prime is 622304339. The next prime is 622304401. The reversal of 622304387 is 783403226.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 622304387 - 2¹² = 622300291 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (622304317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 311152193 + 311152194.

It is an arithmetic number, because the mean of its divisors is an integer number (311152194).

Almost surely, 2^622304387 is an apocalyptic number.

622304387 is a deficient number, since it is larger than the sum of its proper divisors (1).

622304387 is an equidigital number, since it uses as much as digits as its factorization.

622304387 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48384, while the sum is 35.

The square root of 622304387 is about 24946.0294836673. The cubic root of 622304387 is about 853.7570197077.

The spelling of 622304387 in words is "six hundred twenty-two million, three hundred four thousand, three hundred eighty-seven".