3772161 has 12 divisors (see below), whose sum is σ = 5685888. Its totient is φ = 2405304.

The previous prime is 3772151. The next prime is 3772177. The reversal of 3772161 is 1612773.

It is not a de Polignac number, because 3772161 - 2¹⁰ = 3771137 is a prime.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

3772161 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3772121) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8905 + ... + 9318.

It is an arithmetic number, because the mean of its divisors is an integer number (473824).

Almost surely, 2^3772161 is an apocalyptic number.

It is an amenable number.

3772161 is a deficient number, since it is larger than the sum of its proper divisors (1913727).

3772161 is a wasteful number, since it uses less digits than its factorization.

3772161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18252 (or 18249 counting only the distinct ones).

The product of its digits is 1764, while the sum is 27.

The square root of 3772161 is about 1942.2051899838. The cubic root of 3772161 is about 155.6670660948.

The spelling of 3772161 in words is "three million, seven hundred seventy-two thousand, one hundred sixty-one".