2901639 has 16 divisors (see below), whose sum is σ = 4257792. Its totient is φ = 1746528.

The previous prime is 2901617. The next prime is 2901643. The reversal of 2901639 is 9361092.

It is not a de Polignac number, because 2901639 - 2⁵ = 2901607 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2901649) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1042 + ... + 2624.

It is an arithmetic number, because the mean of its divisors is an integer number (266112).

2^2901639 is an apocalyptic number.

2901639 is a deficient number, since it is larger than the sum of its proper divisors (1356153).

2901639 is a wasteful number, since it uses less digits than its factorization.

2901639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1646.

The product of its (nonzero) digits is 2916, while the sum is 30.

The square root of 2901639 is about 1703.4197955877. The cubic root of 2901639 is about 142.6311749962.

The spelling of 2901639 in words is "two million, nine hundred one thousand, six hundred thirty-nine".