2811672 has 40 divisors (see below), whose sum is σ = 7877100. Its totient is φ = 937008.

The previous prime is 2811661. The next prime is 2811691. The reversal of 2811672 is 2761182.

2811672 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

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 9 ways as a sum of consecutive naturals, for example, 1522 + ... + 2817.

2^2811672 is an apocalyptic number.

It is an amenable number.

2811672 is an abundant number, since it is smaller than the sum of its proper divisors (5065428).

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

2811672 is a wasteful number, since it uses less digits than its factorization.

2811672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4357 (or 4344 counting only the distinct ones).

The product of its digits is 1344, while the sum is 27.

The square root of 2811672 is about 1676.8041030484. The cubic root of 2811672 is about 141.1415509222.

It can be divided in two parts, 281 and 1672, that added together give a triangular number (1953 = T₆₂).

The spelling of 2811672 in words is "two million, eight hundred eleven thousand, six hundred seventy-two".