1622063549 has 4 divisors (see below), whose sum is σ = 1625725536. Its totient is φ = 1618401564.

The previous prime is 1622063543. The next prime is 1622063567. The reversal of 1622063549 is 9453602261.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1622063549 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1622063543) 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, 1830329 + ... + 1831214.

It is an arithmetic number, because the mean of its divisors is an integer number (406431384).

Almost surely, 2^1622063549 is an apocalyptic number.

It is an amenable number.

1622063549 is a deficient number, since it is larger than the sum of its proper divisors (3661987).

1622063549 is an equidigital number, since it uses as much as digits as its factorization.

1622063549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3661986.

The product of its (nonzero) digits is 77760, while the sum is 38.

The square root of 1622063549 is about 40274.8500804162. The cubic root of 1622063549 is about 1174.9587549126.

The spelling of 1622063549 in words is "one billion, six hundred twenty-two million, sixty-three thousand, five hundred forty-nine".