648057 has 16 divisors (see below), whose sum is σ = 931392. Its totient is φ = 399360.

The previous prime is 648047. The next prime is 648059. The reversal of 648057 is 750846.

648057 = T₁₇₈ + T₁₇₉ + ... + T₂₁₁.

It is a happy number.

It is not a de Polignac number, because 648057 - 2⁴ = 648041 is a prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 648057.

It is not an unprimeable number, because it can be changed into a prime (648059) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4882 + ... + 5012.

It is an arithmetic number, because the mean of its divisors is an integer number (58212).

2⁶⁴⁸⁰⁵⁷ is an apocalyptic number.

It is an amenable number.

648057 is a deficient number, since it is larger than the sum of its proper divisors (283335).

648057 is a wasteful number, since it uses less digits than its factorization.

648057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248.

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 648057 is about 805.0198755310. The cubic root of 648057 is about 86.5375114350.

The spelling of 648057 in words is "six hundred forty-eight thousand, fifty-seven".