3161772 has 36 divisors (see below), whose sum is σ = 8111376. Its totient is φ = 1038240.

The previous prime is 3161749. The next prime is 3161773. The reversal of 3161772 is 2771613.

3161772 is digitally balanced in base 2 and base 5, because in such bases it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (3161773) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 1938 + ... + 3174.

It is an arithmetic number, because the mean of its divisors is an integer number (225316).

Almost surely, 2^3161772 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3161772, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4055688).

3161772 is an abundant number, since it is smaller than the sum of its proper divisors (4949604).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3161772 is a wasteful number, since it uses less digits than its factorization.

3161772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1318 (or 1313 counting only the distinct ones).

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

The square root of 3161772 is about 1778.1372275502. The cubic root of 3161772 is about 146.7721027899.

The spelling of 3161772 in words is "three million, one hundred sixty-one thousand, seven hundred seventy-two".