1622363979 has 4 divisors (see below), whose sum is σ = 2163151976. Its totient is φ = 1081575984.

The previous prime is 1622363959. The next prime is 1622363989. The reversal of 1622363979 is 9793632261.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1622363979 - 2⁵ = 1622363947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1622363959) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 270393994 + ... + 270393999.

It is an arithmetic number, because the mean of its divisors is an integer number (540787994).

Almost surely, 2^1622363979 is an apocalyptic number.

1622363979 is a deficient number, since it is larger than the sum of its proper divisors (540787997).

1622363979 is an equidigital number, since it uses as much as digits as its factorization.

1622363979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 540787996.

The product of its digits is 734832, while the sum is 48.

The square root of 1622363979 is about 40278.5796546998. The cubic root of 1622363979 is about 1175.0312903090.

The spelling of 1622363979 in words is "one billion, six hundred twenty-two million, three hundred sixty-three thousand, nine hundred seventy-nine".