2995639 has 4 divisors (see below), whose sum is σ = 3059424. Its totient is φ = 2931856.

The previous prime is 2995633. The next prime is 2995661. The reversal of 2995639 is 9365992.

2995639 = T₂₀₄ + T₂₀₅ + ... + T₂₉₇.

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 2995639 - 2⁷ = 2995511 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2995595 and 2995604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2995633) 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, 31822 + ... + 31915.

It is an arithmetic number, because the mean of its divisors is an integer number (764856).

2^2995639 is an apocalyptic number.

2995639 is a deficient number, since it is larger than the sum of its proper divisors (63785).

2995639 is an equidigital number, since it uses as much as digits as its factorization.

2995639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63784.

The product of its digits is 131220, while the sum is 43.

The square root of 2995639 is about 1730.7914374644. The cubic root of 2995639 is about 144.1550381360.

The spelling of 2995639 in words is "two million, nine hundred ninety-five thousand, six hundred thirty-nine".