3706225 has 6 divisors (see below), whose sum is σ = 4595750. Its totient is φ = 2964960.

The previous prime is 3706201. The next prime is 3706247. The reversal of 3706225 is 5226073.

3706225 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 46656 + 3659569 = 216^2 + 1913^2 .

It is not a de Polignac number, because 3706225 - 2⁵ = 3706193 is a prime.

It is a super-2 number, since 2×3706225² = 27472207501250, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25), and also a Moran number because the ratio is a prime number: 148249 = 3706225 / (3 + 7 + 0 + 6 + 2 + 2 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 3706225.

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, 74100 + ... + 74149.

Almost surely, 2^3706225 is an apocalyptic number.

It is an amenable number.

3706225 is a deficient number, since it is larger than the sum of its proper divisors (889525).

3706225 is a wasteful number, since it uses less digits than its factorization.

3706225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148259 (or 148254 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 25.

The square root of 3706225 is about 1925.1558378479. The cubic root of 3706225 is about 154.7547282856.

The spelling of 3706225 in words is "three million, seven hundred six thousand, two hundred twenty-five".