3722706 has 32 divisors (see below), whose sum is σ = 8910720. Its totient is φ = 1145232.

The previous prime is 3722699. The next prime is 3722713. The reversal of 3722706 is 6072273.

It is an interprime number because it is at equal distance from previous prime (3722699) and next prime (3722713).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 3722706.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1950 + ... + 3353.

It is an arithmetic number, because the mean of its divisors is an integer number (278460).

Almost surely, 2^3722706 is an apocalyptic number.

3722706 is an abundant number, since it is smaller than the sum of its proper divisors (5188014).

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

3722706 is a wasteful number, since it uses less digits than its factorization.

3722706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5327 (or 5321 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 27.

The square root of 3722706 is about 1929.4315224957. The cubic root of 3722706 is about 154.9837790864.

Adding to 3722706 its reverse (6072273), we get a palindrome (9794979).

The spelling of 3722706 in words is "three million, seven hundred twenty-two thousand, seven hundred six".