1001622823 has 2 divisors, whose sum is σ = 1001622824. Its totient is φ = 1001622822.

The previous prime is 1001622799. The next prime is 1001622841. The reversal of 1001622823 is 3282261001.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1001622823 - 2¹³ = 1001614631 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1001622863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500811411 + 500811412.

It is an arithmetic number, because the mean of its divisors is an integer number (500811412).

Almost surely, 2^1001622823 is an apocalyptic number.

1001622823 is a deficient number, since it is larger than the sum of its proper divisors (1).

1001622823 is an equidigital number, since it uses as much as digits as its factorization.

1001622823 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 1001622823 is about 31648.4252846804. The cubic root of 1001622823 is about 1000.5406486464.

Adding to 1001622823 its reverse (3282261001), we get a palindrome (4283883824).

The spelling of 1001622823 in words is "one billion, one million, six hundred twenty-two thousand, eight hundred twenty-three".