63641006 has 24 divisors (see below), whose sum is σ = 112773384. Its totient is φ = 26700960.

The previous prime is 63640981. The next prime is 63641033. The reversal of 63641006 is 60014636.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4841 + ... + 12276.

It is an arithmetic number, because the mean of its divisors is an integer number (4698891).

Almost surely, 2^63641006 is an apocalyptic number.

63641006 is a deficient number, since it is larger than the sum of its proper divisors (49132378).

63641006 is a wasteful number, since it uses less digits than its factorization.

63641006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17156 (or 17143 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 63641006 is about 7977.5313224080. The cubic root of 63641006 is about 399.2506930576.

The spelling of 63641006 in words is "sixty-three million, six hundred forty-one thousand, six".