648983495 has 4 divisors (see below), whose sum is σ = 778780200. Its totient is φ = 519186792.

The previous prime is 648983471. The next prime is 648983497. The reversal of 648983495 is 594389846.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 648983495 - 2²² = 644789191 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 648983495.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (648983497) 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, 64898345 + ... + 64898354.

It is an arithmetic number, because the mean of its divisors is an integer number (194695050).

Almost surely, 2^648983495 is an apocalyptic number.

648983495 is a deficient number, since it is larger than the sum of its proper divisors (129796705).

648983495 is a wasteful number, since it uses less digits than its factorization.

648983495 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129796704.

The product of its digits is 7464960, while the sum is 56.

The square root of 648983495 is about 25475.1544646936. The cubic root of 648983495 is about 865.7873126275.

The spelling of 648983495 in words is "six hundred forty-eight million, nine hundred eighty-three thousand, four hundred ninety-five".