3972285 has 24 divisors (see below), whose sum is σ = 7056504. Its totient is φ = 2065920.

The previous prime is 3972263. The next prime is 3972301. The reversal of 3972285 is 5822793.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 181476 + 3790809 = 426^2 + 1947^2 .

It is not a de Polignac number, because 3972285 - 2⁸ = 3972029 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 769 + ... + 2921.

It is an arithmetic number, because the mean of its divisors is an integer number (294021).

Almost surely, 2^3972285 is an apocalyptic number.

It is an amenable number.

3972285 is a deficient number, since it is larger than the sum of its proper divisors (3084219).

3972285 is a wasteful number, since it uses less digits than its factorization.

3972285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2205 (or 2202 counting only the distinct ones).

The product of its digits is 30240, while the sum is 36.

The square root of 3972285 is about 1993.0592063459. The cubic root of 3972285 is about 158.3726316735.

The spelling of 3972285 in words is "three million, nine hundred seventy-two thousand, two hundred eighty-five".