1622473969 has 2 divisors, whose sum is σ = 1622473970. Its totient is φ = 1622473968.

The previous prime is 1622473967. The next prime is 1622473987. The reversal of 1622473969 is 9693742261.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 940219569 + 682254400 = 30663^2 + 26120^2 .

It is a cyclic number.

It is not a de Polignac number, because 1622473969 - 2¹ = 1622473967 is a prime.

It is a super-2 number, since 2×1622473969² = 5264843560165225922, which contains 22 as substring.

Together with 1622473967, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1622473967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 811236984 + 811236985.

It is an arithmetic number, because the mean of its divisors is an integer number (811236985).

Almost surely, 2^1622473969 is an apocalyptic number.

It is an amenable number.

1622473969 is a deficient number, since it is larger than the sum of its proper divisors (1).

1622473969 is an equidigital number, since it uses as much as digits as its factorization.

1622473969 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 979776, while the sum is 49.

The square root of 1622473969 is about 40279.9449974798. The cubic root of 1622473969 is about 1175.0578439005.

The spelling of 1622473969 in words is "one billion, six hundred twenty-two million, four hundred seventy-three thousand, nine hundred sixty-nine".