648807 has 8 divisors (see below), whose sum is σ = 902784. Its totient is φ = 413688.

The previous prime is 648803. The next prime is 648841. The reversal of 648807 is 708846.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 648807 - 2² = 648803 is a prime.

648807 is a lucky number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 648807.

It is not an unprimeable number, because it can be changed into a prime (648803) 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, 4633 + ... + 4770.

It is an arithmetic number, because the mean of its divisors is an integer number (112848).

2⁶⁴⁸⁸⁰⁷ is an apocalyptic number.

648807 is a deficient number, since it is larger than the sum of its proper divisors (253977).

648807 is a wasteful number, since it uses less digits than its factorization.

648807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9429.

The product of its (nonzero) digits is 10752, while the sum is 33.

The square root of 648807 is about 805.4855678409. The cubic root of 648807 is about 86.5708820140.

The spelling of 648807 in words is "six hundred forty-eight thousand, eight hundred seven".