3722061 has 12 divisors (see below), whose sum is σ = 5685216. Its totient is φ = 2121840.

The previous prime is 3722053. The next prime is 3722083. The reversal of 3722061 is 1602273.

It is a happy number.

It is not a de Polignac number, because 3722061 - 2³ = 3722053 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

3722061 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3722011) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8631 + ... + 9051.

It is an arithmetic number, because the mean of its divisors is an integer number (473768).

Almost surely, 2^3722061 is an apocalyptic number.

It is an amenable number.

3722061 is a deficient number, since it is larger than the sum of its proper divisors (1963155).

3722061 is an frugal number, since it uses more digits than its factorization.

3722061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 852 (or 431 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 21.

The square root of 3722061 is about 1929.2643675764. The cubic root of 3722061 is about 154.9748276846.

Multiplying 3722061 by its sum of digits (21), we get a square (78163281 = 8841²).

3722061 divided by its sum of digits (21) gives a square (177241 = 421²).

The spelling of 3722061 in words is "three million, seven hundred twenty-two thousand, sixty-one".