649763601 has 8 divisors (see below), whose sum is σ = 866890464. Its totient is φ = 432906240.

The previous prime is 649763567. The next prime is 649763617. The reversal of 649763601 is 106367946.

649763601 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 649763601 - 2⁹ = 649763089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (649763641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61680 + ... + 71441.

It is an arithmetic number, because the mean of its divisors is an integer number (108361308).

Almost surely, 2^649763601 is an apocalyptic number.

It is an amenable number.

649763601 is a deficient number, since it is larger than the sum of its proper divisors (217126863).

649763601 is a wasteful number, since it uses less digits than its factorization.

649763601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134751.

The product of its (nonzero) digits is 163296, while the sum is 42.

The square root of 649763601 is about 25490.4609805315. The cubic root of 649763601 is about 866.1340782186.

The spelling of 649763601 in words is "six hundred forty-nine million, seven hundred sixty-three thousand, six hundred one".