2789401 has 4 divisors (see below), whose sum is σ = 2806272. Its totient is φ = 2772532.

The previous prime is 2789399. The next prime is 2789407. The reversal of 2789401 is 1049872.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2789401 - 2¹ = 2789399 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

2789401 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2789407) 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, 8185 + ... + 8518.

It is an arithmetic number, because the mean of its divisors is an integer number (701568).

2^2789401 is an apocalyptic number.

It is an amenable number.

2789401 is a deficient number, since it is larger than the sum of its proper divisors (16871).

2789401 is a wasteful number, since it uses less digits than its factorization.

2789401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16870.

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 2789401 is about 1670.1499932641. The cubic root of 2789401 is about 140.7679061504.

The spelling of 2789401 in words is "two million, seven hundred eighty-nine thousand, four hundred one".