2944691 has 4 divisors (see below), whose sum is σ = 3007392. Its totient is φ = 2881992.

The previous prime is 2944681. The next prime is 2944693. The reversal of 2944691 is 1964492.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2944691 - 2¹⁴ = 2928307 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2944693) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31280 + ... + 31373.

It is an arithmetic number, because the mean of its divisors is an integer number (751848).

2^2944691 is an apocalyptic number.

2944691 is a deficient number, since it is larger than the sum of its proper divisors (62701).

2944691 is an equidigital number, since it uses as much as digits as its factorization.

2944691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62700.

The product of its digits is 15552, while the sum is 35.

The square root of 2944691 is about 1716.0101981049. The cubic root of 2944691 is about 143.3331272156. Note that the first 3 decimals are identical.

Subtracting from 2944691 its sum of digits (35), we obtain a square (2944656 = 1716²).

The spelling of 2944691 in words is "two million, nine hundred forty-four thousand, six hundred ninety-one".