649166936 has 24 divisors (see below), whose sum is σ = 1337902860. Its totient is φ = 295075440.

The previous prime is 649166933. The next prime is 649166957. The reversal of 649166936 is 639661946.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (649166933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 334346 + ... + 336281.

Almost surely, 2^649166936 is an apocalyptic number.

It is an amenable number.

649166936 is an abundant number, since it is smaller than the sum of its proper divisors (688735924).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

649166936 is a wasteful number, since it uses less digits than its factorization.

649166936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 670655 (or 670640 counting only the distinct ones).

The product of its digits is 1259712, while the sum is 50.

The square root of 649166936 is about 25478.7546006472. The cubic root of 649166936 is about 865.8688791234.

The spelling of 649166936 in words is "six hundred forty-nine million, one hundred sixty-six thousand, nine hundred thirty-six".