3721700 has 18 divisors (see below), whose sum is σ = 8076306. Its totient is φ = 1488640.

The previous prime is 3721673. The next prime is 3721717. The reversal of 3721700 is 71273.

3721700 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 179776 + 3541924 = 424^2 + 1882^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 18509 + ... + 18708.

Almost surely, 2^3721700 is an apocalyptic number.

It is an amenable number.

3721700 is an abundant number, since it is smaller than the sum of its proper divisors (4354606).

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

3721700 is a wasteful number, since it uses less digits than its factorization.

3721700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37231 (or 37224 counting only the distinct ones).

The product of its (nonzero) digits is 294, while the sum is 20.

The square root of 3721700 is about 1929.1708063311. The cubic root of 3721700 is about 154.9698172239.

Adding to 3721700 its reverse (71273), we get a palindrome (3792973).

The spelling of 3721700 in words is "three million, seven hundred twenty-one thousand, seven hundred".