649797486 has 32 divisors (see below), whose sum is σ = 1406630400. Its totient is φ = 198928224.

The previous prime is 649797481. The next prime is 649797529. The reversal of 649797486 is 684797946.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (649797481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5410 + ... + 36453.

It is an arithmetic number, because the mean of its divisors is an integer number (43957200).

Almost surely, 2^649797486 is an apocalyptic number.

649797486 is an abundant number, since it is smaller than the sum of its proper divisors (756832914).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

649797486 is a wasteful number, since it uses less digits than its factorization.

649797486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42080.

The product of its digits is 18289152, while the sum is 60.

The square root of 649797486 is about 25491.1256322666. The cubic root of 649797486 is about 866.1491341779.

The spelling of 649797486 in words is "six hundred forty-nine million, seven hundred ninety-seven thousand, four hundred eighty-six".