2961891 has 12 divisors (see below), whose sum is σ = 4503720. Its totient is φ = 1870560.

The previous prime is 2961877. The next prime is 2961899. The reversal of 2961891 is 1981692.

It is not a de Polignac number, because 2961891 - 2¹¹ = 2959843 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2961899) 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, 8490 + ... + 8831.

It is an arithmetic number, because the mean of its divisors is an integer number (375310).

2^2961891 is an apocalyptic number.

2961891 is a deficient number, since it is larger than the sum of its proper divisors (1541829).

2961891 is a wasteful number, since it uses less digits than its factorization.

2961891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17346 (or 17343 counting only the distinct ones).

The product of its digits is 7776, while the sum is 36.

The square root of 2961891 is about 1721.0145263768. The cubic root of 2961891 is about 143.6116561897.

It can be divided in two parts, 296 and 1891, that added together give a 7-th power (2187 = 3⁷).

The spelling of 2961891 in words is "two million, nine hundred sixty-one thousand, eight hundred ninety-one".