648310853 has 4 divisors (see below), whose sum is σ = 649435020. Its totient is φ = 647186688.

The previous prime is 648310847. The next prime is 648310877. The reversal of 648310853 is 358013846.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 641456929 + 6853924 = 25327^2 + 2618^2 .

It is a cyclic number.

It is not a de Polignac number, because 648310853 - 2¹⁴ = 648294469 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 (648310253) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 561218 + ... + 562371.

It is an arithmetic number, because the mean of its divisors is an integer number (162358755).

Almost surely, 2^648310853 is an apocalyptic number.

It is an amenable number.

648310853 is a deficient number, since it is larger than the sum of its proper divisors (1124167).

648310853 is a wasteful number, since it uses less digits than its factorization.

648310853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1124166.

The product of its (nonzero) digits is 69120, while the sum is 38.

The square root of 648310853 is about 25461.9491202068. The cubic root of 648310853 is about 865.4880927818.

The spelling of 648310853 in words is "six hundred forty-eight million, three hundred ten thousand, eight hundred fifty-three".