2906557 has 4 divisors (see below), whose sum is σ = 2934880. Its totient is φ = 2878236.

The previous prime is 2906549. The next prime is 2906567. The reversal of 2906557 is 7556092.

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 2906557 - 2³ = 2906549 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2906537) 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 3 ways as a sum of consecutive naturals, for example, 14007 + ... + 14212.

It is an arithmetic number, because the mean of its divisors is an integer number (733720).

2^2906557 is an apocalyptic number.

It is an amenable number.

2906557 is a deficient number, since it is larger than the sum of its proper divisors (28323).

2906557 is a wasteful number, since it uses less digits than its factorization.

2906557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28322.

The product of its (nonzero) digits is 18900, while the sum is 34.

The square root of 2906557 is about 1704.8627510741. The cubic root of 2906557 is about 142.7117115699.

The spelling of 2906557 in words is "two million, nine hundred six thousand, five hundred fifty-seven".