1622523623 has 12 divisors (see below), whose sum is σ = 1913284800. Its totient is φ = 1371680352.

The previous prime is 1622523611. The next prime is 1622523631. The reversal of 1622523623 is 3263252261.

It is not a de Polignac number, because 1622523623 - 2²⁸ = 1354088167 is a prime.

It is a super-2 number, since 2×1622523623² = 5265165814386092258, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1622523623.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1622523653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 223223 + ... + 230376.

It is an arithmetic number, because the mean of its divisors is an integer number (159440400).

Almost surely, 2^1622523623 is an apocalyptic number.

1622523623 is a deficient number, since it is larger than the sum of its proper divisors (290761177).

1622523623 is an equidigital number, since it uses as much as digits as its factorization.

1622523623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 453686 (or 453679 counting only the distinct ones).

The product of its digits is 25920, while the sum is 32.

The square root of 1622523623 is about 40280.5613540824. The cubic root of 1622523623 is about 1175.0698308883.

Adding to 1622523623 its reverse (3263252261), we get a palindrome (4885775884).

The spelling of 1622523623 in words is "one billion, six hundred twenty-two million, five hundred twenty-three thousand, six hundred twenty-three".