2057447 has 8 divisors (see below), whose sum is σ = 2362752. Its totient is φ = 1755000.

The previous prime is 2057441. The next prime is 2057477. The reversal of 2057447 is 7447502.

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 2057447 - 2⁴ = 2057431 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2057441) 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, 1172 + ... + 2342.

It is an arithmetic number, because the mean of its divisors is an integer number (295344).

2^2057447 is an apocalyptic number.

2057447 is a deficient number, since it is larger than the sum of its proper divisors (305305).

2057447 is a wasteful number, since it uses less digits than its factorization.

2057447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1429.

The product of its (nonzero) digits is 7840, while the sum is 29.

The square root of 2057447 is about 1434.3803540205. The cubic root of 2057447 is about 127.1870474199.

The spelling of 2057447 in words is "two million, fifty-seven thousand, four hundred forty-seven".