649610476 has 6 divisors (see below), whose sum is σ = 1136818340. Its totient is φ = 324805236.

The previous prime is 649610471. The next prime is 649610491. The reversal of 649610476 is 674016946.

It is not an unprimeable number, because it can be changed into a prime (649610471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81201306 + ... + 81201313.

Almost surely, 2^649610476 is an apocalyptic number.

It is an amenable number.

649610476 is a deficient number, since it is larger than the sum of its proper divisors (487207864).

649610476 is a wasteful number, since it uses less digits than its factorization.

649610476 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162402623 (or 162402621 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 43.

The square root of 649610476 is about 25487.4572289980. The cubic root of 649610476 is about 866.0660343945.

The spelling of 649610476 in words is "six hundred forty-nine million, six hundred ten thousand, four hundred seventy-six".