649604411 has 8 divisors (see below), whose sum is σ = 683213184. Its totient is φ = 616786560.

The previous prime is 649604401. The next prime is 649604413. The reversal of 649604411 is 114406946.

It is a happy number.

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 649604411 - 2²⁶ = 582495547 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (649604413) 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, 196046 + ... + 199331.

It is an arithmetic number, because the mean of its divisors is an integer number (85401648).

Almost surely, 2^649604411 is an apocalyptic number.

649604411 is a deficient number, since it is larger than the sum of its proper divisors (33608773).

649604411 is a wasteful number, since it uses less digits than its factorization.

649604411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 395461.

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 649604411 is about 25487.3382486285. The cubic root of 649604411 is about 866.0633390834.

The spelling of 649604411 in words is "six hundred forty-nine million, six hundred four thousand, four hundred eleven".