3561172 has 12 divisors (see below), whose sum is σ = 6260436. Its totient is φ = 1772480.

The previous prime is 3561167. The next prime is 3561191. The reversal of 3561172 is 2711653.

It can be written as a sum of positive squares in 2 ways, for example, as 2033476 + 1527696 = 1426^2 + 1236^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 979 + ... + 2842.

It is an arithmetic number, because the mean of its divisors is an integer number (521703).

Almost surely, 2^3561172 is an apocalyptic number.

It is an amenable number.

3561172 is a deficient number, since it is larger than the sum of its proper divisors (2699264).

3561172 is a wasteful number, since it uses less digits than its factorization.

3561172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4058 (or 4056 counting only the distinct ones).

The product of its digits is 1260, while the sum is 25.

The square root of 3561172 is about 1887.1067802326. The cubic root of 3561172 is about 152.7088886945.

The spelling of 3561172 in words is "three million, five hundred sixty-one thousand, one hundred seventy-two".