7285057 has 8 divisors (see below), whose sum is σ = 7900200. Its totient is φ = 6677760.

The previous prime is 7285049. The next prime is 7285067. The reversal of 7285057 is 7505827.

It can be written as a sum of positive squares in 4 ways, for example, as 16641 + 7268416 = 129^2 + 2696^2 .

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 7285057 - 2³ = 7285049 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 (7285007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57 + ... + 3817.

It is an arithmetic number, because the mean of its divisors is an integer number (987525).

Almost surely, 2^7285057 is an apocalyptic number.

It is an amenable number.

7285057 is a deficient number, since it is larger than the sum of its proper divisors (615143).

7285057 is a wasteful number, since it uses less digits than its factorization.

7285057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3923.

The product of its (nonzero) digits is 19600, while the sum is 34.

The square root of 7285057 is about 2699.0844744098. The cubic root of 7285057 is about 193.8552876234.

The spelling of 7285057 in words is "seven million, two hundred eighty-five thousand, fifty-seven".