649029683 has 8 divisors (see below), whose sum is σ = 685131600. Its totient is φ = 613122048.

The previous prime is 649029649. The next prime is 649029697. The reversal of 649029683 is 386920946.

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

It is a cyclic number.

It is not a de Polignac number, because 649029683 - 2⁸ = 649029427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (649029613) 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, 41678 + ... + 55091.

It is an arithmetic number, because the mean of its divisors is an integer number (85641450).

Almost surely, 2^649029683 is an apocalyptic number.

649029683 is a deficient number, since it is larger than the sum of its proper divisors (36101917).

649029683 is a wasteful number, since it uses less digits than its factorization.

649029683 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97141.

The product of its (nonzero) digits is 559872, while the sum is 47.

The square root of 649029683 is about 25476.0609788876. The cubic root of 649029683 is about 865.8078514322.

The spelling of 649029683 in words is "six hundred forty-nine million, twenty-nine thousand, six hundred eighty-three".