3747222 has 20 divisors (see below), whose sum is σ = 8396916. Its totient is φ = 1249020.

The previous prime is 3747197. The next prime is 3747223. The reversal of 3747222 is 2227473.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3747223) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 11404 + ... + 11727.

Almost surely, 2^3747222 is an apocalyptic number.

3747222 is an abundant number, since it is smaller than the sum of its proper divisors (4649694).

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

3747222 is a wasteful number, since it uses less digits than its factorization.

3747222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23145 (or 23136 counting only the distinct ones).

The product of its digits is 4704, while the sum is 27.

The square root of 3747222 is about 1935.7742636992. The cubic root of 3747222 is about 155.3232518564.

It can be divided in two parts, 3747 and 222, that added together give a square (3969 = 63²).

The spelling of 3747222 in words is "three million, seven hundred forty-seven thousand, two hundred twenty-two".