2905047 has 6 divisors (see below), whose sum is σ = 4196192. Its totient is φ = 1936692.

The previous prime is 2905033. The next prime is 2905057. The reversal of 2905047 is 7405092.

It is not a de Polignac number, because 2905047 - 2⁴ = 2905031 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 2905047.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2905027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 161383 + ... + 161400.

2^2905047 is an apocalyptic number.

2905047 is a deficient number, since it is larger than the sum of its proper divisors (1291145).

2905047 is a wasteful number, since it uses less digits than its factorization.

2905047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 322789 (or 322786 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 2905047 is about 1704.4198426444. The cubic root of 2905047 is about 142.6869936633.

The spelling of 2905047 in words is "two million, nine hundred five thousand, forty-seven".