63649982 has 16 divisors (see below), whose sum is σ = 104457600. Its totient is φ = 28847640.

The previous prime is 63649931. The next prime is 63649991. The reversal of 63649982 is 28994636.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3869 + ... + 11927.

It is an arithmetic number, because the mean of its divisors is an integer number (6528600).

Almost surely, 2^63649982 is an apocalyptic number.

63649982 is a deficient number, since it is larger than the sum of its proper divisors (40807618).

63649982 is a wasteful number, since it uses less digits than its factorization.

63649982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8431.

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

The square root of 63649982 is about 7978.0938826264. The cubic root of 63649982 is about 399.2694624327.

The spelling of 63649982 in words is "sixty-three million, six hundred forty-nine thousand, nine hundred eighty-two".