2936689 has 4 divisors (see below), whose sum is σ = 3356224. Its totient is φ = 2517156.

The previous prime is 2936683. The next prime is 2936693. The reversal of 2936689 is 9866392.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2936689 - 2⁵ = 2936657 is a prime.

It is a Duffinian number.

2936689 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2936683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 209757 + ... + 209770.

It is an arithmetic number, because the mean of its divisors is an integer number (839056).

2^2936689 is an apocalyptic number.

It is an amenable number.

2936689 is a deficient number, since it is larger than the sum of its proper divisors (419535).

2936689 is an equidigital number, since it uses as much as digits as its factorization.

2936689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 419534.

The product of its digits is 139968, while the sum is 43.

The square root of 2936689 is about 1713.6770407518. The cubic root of 2936689 is about 143.2031767186.

The spelling of 2936689 in words is "two million, nine hundred thirty-six thousand, six hundred eighty-nine".