1622666467 has 4 divisors (see below), whose sum is σ = 1632621640. Its totient is φ = 1612711296.

The previous prime is 1622666417. The next prime is 1622666543. The reversal of 1622666467 is 7646662261.

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

It is a cyclic number.

It is not a de Polignac number, because 1622666467 - 2²³ = 1614277859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1622666407) 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, 4977342 + ... + 4977667.

It is an arithmetic number, because the mean of its divisors is an integer number (408155410).

Almost surely, 2^1622666467 is an apocalyptic number.

1622666467 is a deficient number, since it is larger than the sum of its proper divisors (9955173).

1622666467 is an equidigital number, since it uses as much as digits as its factorization.

1622666467 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9955172.

The product of its digits is 870912, while the sum is 46.

The square root of 1622666467 is about 40282.3344283819. The cubic root of 1622666467 is about 1175.1043135397.

The spelling of 1622666467 in words is "one billion, six hundred twenty-two million, six hundred sixty-six thousand, four hundred sixty-seven".