648833495 has 4 divisors (see below), whose sum is σ = 778600200. Its totient is φ = 519066792.

The previous prime is 648833483. The next prime is 648833533. The reversal of 648833495 is 594338846.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 594338846 = 2 ⋅297169423.

It is a cyclic number.

It is not a de Polignac number, because 648833495 - 2¹⁸ = 648571351 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64883345 + ... + 64883354.

It is an arithmetic number, because the mean of its divisors is an integer number (194650050).

Almost surely, 2^648833495 is an apocalyptic number.

648833495 is a deficient number, since it is larger than the sum of its proper divisors (129766705).

648833495 is a wasteful number, since it uses less digits than its factorization.

648833495 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129766704.

The product of its digits is 2488320, while the sum is 50.

The square root of 648833495 is about 25472.2102496034. The cubic root of 648833495 is about 865.7206041495.

The spelling of 648833495 in words is "six hundred forty-eight million, eight hundred thirty-three thousand, four hundred ninety-five".