2937891 has 16 divisors (see below), whose sum is σ = 4313088. Its totient is φ = 1764000.

The previous prime is 2937881. The next prime is 2937929. The reversal of 2937891 is 1987392.

It is not a de Polignac number, because 2937891 - 2⁶ = 2937827 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2937881) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3841 + ... + 4541.

It is an arithmetic number, because the mean of its divisors is an integer number (269568).

2^2937891 is an apocalyptic number.

2937891 is a deficient number, since it is larger than the sum of its proper divisors (1375197).

2937891 is a wasteful number, since it uses less digits than its factorization.

2937891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 842.

The product of its digits is 27216, while the sum is 39.

The square root of 2937891 is about 1714.0277127281. The cubic root of 2937891 is about 143.2227119548. Note that the first 3 decimals are identical.

It can be divided in two parts, 2937 and 891, that added together give a triangular number (3828 = T₈₇).

The spelling of 2937891 in words is "two million, nine hundred thirty-seven thousand, eight hundred ninety-one".