2891672 has 16 divisors (see below), whose sum is σ = 6196560. Its totient is φ = 1239264.

The previous prime is 2891671. The next prime is 2891687. The reversal of 2891672 is 2761982.

It is a happy number.

2891672 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2891671) 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 3 ways as a sum of consecutive naturals, for example, 25763 + ... + 25874.

It is an arithmetic number, because the mean of its divisors is an integer number (387285).

2^2891672 is an apocalyptic number.

It is an amenable number.

2891672 is an abundant number, since it is smaller than the sum of its proper divisors (3304888).

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

2891672 is a wasteful number, since it uses less digits than its factorization.

2891672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51650 (or 51646 counting only the distinct ones).

The product of its digits is 12096, while the sum is 35.

The square root of 2891672 is about 1700.4916935992. The cubic root of 2891672 is about 142.4676770845.

The spelling of 2891672 in words is "two million, eight hundred ninety-one thousand, six hundred seventy-two".