2905939 has 8 divisors (see below), whose sum is σ = 2976480. Its totient is φ = 2836416.

The previous prime is 2905921. The next prime is 2905949. The reversal of 2905939 is 9395092.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2905939 - 2¹⁷ = 2774867 is a prime.

It is a Duffinian number.

2905939 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 2905898 and 2905907.

It is not an unprimeable number, because it can be changed into a prime (2905919) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9009 + ... + 9325.

It is an arithmetic number, because the mean of its divisors is an integer number (372060).

2^2905939 is an apocalyptic number.

2905939 is a deficient number, since it is larger than the sum of its proper divisors (70541).

2905939 is a wasteful number, since it uses less digits than its factorization.

2905939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 509.

The product of its (nonzero) digits is 21870, while the sum is 37.

The square root of 2905939 is about 1704.6814951773. The cubic root of 2905939 is about 142.7015962697.

It can be divided in two parts, 2905 and 939, that added together give a square (3844 = 62²).

The spelling of 2905939 in words is "two million, nine hundred five thousand, nine hundred thirty-nine".