3700000 has 72 divisors (see below), whose sum is σ = 9350964. Its totient is φ = 1440000.

The previous prime is 3699961. The next prime is 3700001. The reversal of 3700000 is 73.

It can be written as a sum of positive squares in 6 ways, for example, as 59536 + 3640464 = 244^2 + 1908^2 .

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a self number, because there is not a number n which added to its sum of digits gives 3700000.

It is not an unprimeable number, because it can be changed into a prime (3700001) 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, 99982 + ... + 100018.

Almost surely, 2^3700000 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 3700000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4675482).

3700000 is an abundant number, since it is smaller than the sum of its proper divisors (5650964).

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

3700000 is an frugal number, since it uses more digits than its factorization.

3700000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72 (or 44 counting only the distinct ones).

The product of its (nonzero) digits is 21, while the sum is 10.

The square root of 3700000 is about 1923.5384061671. The cubic root of 3700000 is about 154.6680373772.

Adding to 3700000 its reverse (73), we get a palindrome (3700073).

The spelling of 3700000 in words is "three million, seven hundred thousand".