2937689 has 4 divisors (see below), whose sum is σ = 3017124. Its totient is φ = 2858256.

The previous prime is 2937679. The next prime is 2937709. The reversal of 2937689 is 9867392.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1690000 + 1247689 = 1300^2 + 1117^2 .

It is a cyclic number.

It is not a de Polignac number, because 2937689 - 2⁴ = 2937673 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2937679) 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, 39662 + ... + 39735.

It is an arithmetic number, because the mean of its divisors is an integer number (754281).

2^2937689 is an apocalyptic number.

It is an amenable number.

2937689 is a deficient number, since it is larger than the sum of its proper divisors (79435).

2937689 is an equidigital number, since it uses as much as digits as its factorization.

2937689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79434.

The product of its digits is 163296, while the sum is 44.

The square root of 2937689 is about 1713.9687861802. The cubic root of 2937689 is about 143.2194293675.

It can be divided in two parts, 29 and 37689, that multiplied together give a triangular number (1092981 = T₁₄₇₈).

The spelling of 2937689 in words is "two million, nine hundred thirty-seven thousand, six hundred eighty-nine".