1622105399 has 2 divisors, whose sum is σ = 1622105400. Its totient is φ = 1622105398.

The previous prime is 1622105389. The next prime is 1622105431. The reversal of 1622105399 is 9935012261.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1622105399 - 2⁸ = 1622105143 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1622105389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 811052699 + 811052700.

It is an arithmetic number, because the mean of its divisors is an integer number (811052700).

Almost surely, 2^1622105399 is an apocalyptic number.

1622105399 is a deficient number, since it is larger than the sum of its proper divisors (1).

1622105399 is an equidigital number, since it uses as much as digits as its factorization.

1622105399 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 29160, while the sum is 38.

The square root of 1622105399 is about 40275.3696320717. The cubic root of 1622105399 is about 1174.9688596546.

The spelling of 1622105399 in words is "one billion, six hundred twenty-two million, one hundred five thousand, three hundred ninety-nine".