3621772 has 36 divisors (see below), whose sum is σ = 7969360. Its totient is φ = 1409760.

The previous prime is 3621767. The next prime is 3621797. The reversal of 3621772 is 2771263.

3621772 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 3621772.

It is an unprimeable number.

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, 2854 + ... + 3922.

Almost surely, 2^3621772 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3621772, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3984680).

3621772 is an abundant number, since it is smaller than the sum of its proper divisors (4347588).

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

3621772 is a wasteful number, since it uses less digits than its factorization.

3621772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1102 (or 1089 counting only the distinct ones).

The product of its digits is 3528, while the sum is 28.

The square root of 3621772 is about 1903.0953733326. The cubic root of 3621772 is about 153.5702303236.

The spelling of 3621772 in words is "three million, six hundred twenty-one thousand, seven hundred seventy-two".