3720925 has 18 divisors (see below), whose sum is σ = 5015738. Its totient is φ = 2722080.

The previous prime is 3720923. The next prime is 3720929. The reversal of 3720925 is 5290273.

It can be written as a sum of positive squares in 3 ways, for example, as 11449 + 3709476 = 107^2 + 1926^2 .

It is not a de Polignac number, because 3720925 - 2¹ = 3720923 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3720893 and 3720902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3720923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 34722 + ... + 34828.

Almost surely, 2^3720925 is an apocalyptic number.

It is an amenable number.

3720925 is a deficient number, since it is larger than the sum of its proper divisors (1294813).

3720925 is a wasteful number, since it uses less digits than its factorization.

3720925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237 (or 125 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 28.

The square root of 3720925 is about 1928.9699323732. The cubic root of 3720925 is about 154.9590596001.

The spelling of 3720925 in words is "three million, seven hundred twenty thousand, nine hundred twenty-five".