2074639 has 4 divisors (see below), whose sum is σ = 2371024. Its totient is φ = 1778256.

The previous prime is 2074609. The next prime is 2074643. The reversal of 2074639 is 9364702.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9364702 = 2 ⋅4682351.

It is a cyclic number.

It is not a de Polignac number, because 2074639 - 2¹³ = 2066447 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2074639.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2074609) 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, 148182 + ... + 148195.

It is an arithmetic number, because the mean of its divisors is an integer number (592756).

2^2074639 is an apocalyptic number.

2074639 is a deficient number, since it is larger than the sum of its proper divisors (296385).

2074639 is an equidigital number, since it uses as much as digits as its factorization.

2074639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296384.

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 2074639 is about 1440.3607187090. The cubic root of 2074639 is about 127.5403230144.

The spelling of 2074639 in words is "two million, seventy-four thousand, six hundred thirty-nine".