2965639 has 4 divisors (see below), whose sum is σ = 2987424. Its totient is φ = 2943856.

The previous prime is 2965631. The next prime is 2965681. The reversal of 2965639 is 9365692.

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

It is not a de Polignac number, because 2965639 - 2³ = 2965631 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2965631) 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, 10687 + ... + 10960.

It is an arithmetic number, because the mean of its divisors is an integer number (746856).

2^2965639 is an apocalyptic number.

2965639 is a deficient number, since it is larger than the sum of its proper divisors (21785).

2965639 is a wasteful number, since it uses less digits than its factorization.

2965639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21784.

The product of its digits is 87480, while the sum is 40.

The square root of 2965639 is about 1722.1030747316. The cubic root of 2965639 is about 143.6722064271.

The spelling of 2965639 in words is "two million, nine hundred sixty-five thousand, six hundred thirty-nine".