3622788 has 36 divisors (see below), whose sum is σ = 9863308. Its totient is φ = 1114560.

The previous prime is 3622783. The next prime is 3622789. The reversal of 3622788 is 8872263.

It is a happy number.

3622788 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 636804 + 2985984 = 798^2 + 1728^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (3622783) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3403 + ... + 4338.

Almost surely, 2^3622788 is an apocalyptic number.

It is an amenable number.

3622788 is an abundant number, since it is smaller than the sum of its proper divisors (6240520).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3622788 is a wasteful number, since it uses less digits than its factorization.

3622788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7764 (or 7759 counting only the distinct ones).

The product of its digits is 32256, while the sum is 36.

The square root of 3622788 is about 1903.3622881627. The cubic root of 3622788 is about 153.5845891114.

It can be divided in two parts, 36227 and 88, that added together give a triangular number (36315 = T₂₆₉).

The spelling of 3622788 in words is "three million, six hundred twenty-two thousand, seven hundred eighty-eight".