648313497 has 32 divisors (see below), whose sum is σ = 1088796800. Its totient is φ = 377960256.

The previous prime is 648313487. The next prime is 648313499. The reversal of 648313497 is 794313846.

648313497 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 648313497 - 2¹² = 648309401 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (648313499) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 41938 + ... + 55275.

It is an arithmetic number, because the mean of its divisors is an integer number (34024900).

Almost surely, 2^648313497 is an apocalyptic number.

It is an amenable number.

648313497 is a deficient number, since it is larger than the sum of its proper divisors (440483303).

648313497 is a wasteful number, since it uses less digits than its factorization.

648313497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97254 (or 97248 counting only the distinct ones).

The product of its digits is 435456, while the sum is 45.

The square root of 648313497 is about 25462.0010407666. The cubic root of 648313497 is about 865.4892693508.

The spelling of 648313497 in words is "six hundred forty-eight million, three hundred thirteen thousand, four hundred ninety-seven".