1622971955 has 8 divisors (see below), whose sum is σ = 2124617904. Its totient is φ = 1180343200.

The previous prime is 1622971951. The next prime is 1622972027. The reversal of 1622971955 is 5591792261.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1622971955 - 2² = 1622971951 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1622971951) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14754236 + ... + 14754345.

It is an arithmetic number, because the mean of its divisors is an integer number (265577238).

Almost surely, 2^1622971955 is an apocalyptic number.

1622971955 is a deficient number, since it is larger than the sum of its proper divisors (501645949).

1622971955 is a wasteful number, since it uses less digits than its factorization.

1622971955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29508597.

The product of its digits is 340200, while the sum is 47.

The square root of 1622971955 is about 40286.1260857879. The cubic root of 1622971955 is about 1175.1780517865.

The spelling of 1622971955 in words is "one billion, six hundred twenty-two million, nine hundred seventy-one thousand, nine hundred fifty-five".