1623222705 has 16 divisors (see below), whose sum is σ = 2796937920. Its totient is φ = 799124928.

The previous prime is 1623222697. The next prime is 1623222709. The reversal of 1623222705 is 5072223261.

It is not a de Polignac number, because 1623222705 - 2³ = 1623222697 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1623222709) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4161915 + ... + 4162304.

It is an arithmetic number, because the mean of its divisors is an integer number (174808620).

Almost surely, 2^1623222705 is an apocalyptic number.

1623222705 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1623222705 is a deficient number, since it is larger than the sum of its proper divisors (1173715215).

1623222705 is a wasteful number, since it uses less digits than its factorization.

1623222705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8324240.

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 1623222705 is about 40289.2380791695. The cubic root of 1623222705 is about 1175.2385705406.

Adding to 1623222705 its reverse (5072223261), we get a palindrome (6695445966).

The spelling of 1623222705 in words is "one billion, six hundred twenty-three million, two hundred twenty-two thousand, seven hundred five".