2992639 has 4 divisors (see below), whose sum is σ = 3222856. Its totient is φ = 2762424.

The previous prime is 2992621. The next prime is 2992651. The reversal of 2992639 is 9362992.

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 2992639 - 2⁵ = 2992607 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2992609) 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, 115089 + ... + 115114.

It is an arithmetic number, because the mean of its divisors is an integer number (805714).

2^2992639 is an apocalyptic number.

2992639 is a deficient number, since it is larger than the sum of its proper divisors (230217).

2992639 is a wasteful number, since it uses less digits than its factorization.

2992639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230216.

The product of its digits is 52488, while the sum is 40.

The square root of 2992639 is about 1729.9245648293. The cubic root of 2992639 is about 144.1069004310.

The spelling of 2992639 in words is "two million, nine hundred ninety-two thousand, six hundred thirty-nine".