649067745 has 16 divisors (see below), whose sum is σ = 1039455360. Its totient is φ = 345853824.

The previous prime is 649067737. The next prime is 649067773. The reversal of 649067745 is 547760946.

It is not a de Polignac number, because 649067745 - 2³ = 649067737 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 649067694 and 649067703.

It is an unprimeable number.

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, 2229 + ... + 36098.

It is an arithmetic number, because the mean of its divisors is an integer number (64965960).

Almost surely, 2^649067745 is an apocalyptic number.

It is an amenable number.

649067745 is a deficient number, since it is larger than the sum of its proper divisors (390387615).

649067745 is a wasteful number, since it uses less digits than its factorization.

649067745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39464.

The product of its (nonzero) digits is 1270080, while the sum is 48.

The square root of 649067745 is about 25476.8079829479. The cubic root of 649067745 is about 865.8247760481.

The spelling of 649067745 in words is "six hundred forty-nine million, sixty-seven thousand, seven hundred forty-five".