3791772 has 72 divisors (see below), whose sum is σ = 10273536. Its totient is φ = 1222128.

The previous prime is 3791741. The next prime is 3791789. The reversal of 3791772 is 2771973.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 45643 + ... + 45725.

It is an arithmetic number, because the mean of its divisors is an integer number (142688).

Almost surely, 2^3791772 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 3791772, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5136768).

3791772 is an abundant number, since it is smaller than the sum of its proper divisors (6481764).

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

3791772 is a wasteful number, since it uses less digits than its factorization.

3791772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149 (or 135 counting only the distinct ones).

The product of its digits is 18522, while the sum is 36.

The square root of 3791772 is about 1947.2472878399. The cubic root of 3791772 is about 155.9363645780.

It can be divided in two parts, 37 and 91772, that added together give a square (91809 = 303²).

The spelling of 3791772 in words is "three million, seven hundred ninety-one thousand, seven hundred seventy-two".