3994622555 has 16 divisors (see below), whose sum is σ = 5976370944. Its totient is φ = 2490154080.

The previous prime is 3994622537. The next prime is 3994622591. The reversal of 3994622555 is 5552264993.

It is not a de Polignac number, because 3994622555 - 2²⁶ = 3927513691 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5187437 + ... + 5188206.

It is an arithmetic number, because the mean of its divisors is an integer number (373523184).

Almost surely, 2^3994622555 is an apocalyptic number.

3994622555 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

3994622555 is a deficient number, since it is larger than the sum of its proper divisors (1981748389).

3994622555 is a wasteful number, since it uses less digits than its factorization.

3994622555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10375666.

The product of its digits is 2916000, while the sum is 50.

The square root of 3994622555 is about 63203.0264702569. The cubic root of 3994622555 is about 1586.6893861400.

The spelling of 3994622555 in words is "three billion, nine hundred ninety-four million, six hundred twenty-two thousand, five hundred fifty-five".