63680954 has 24 divisors (see below), whose sum is σ = 99907668. Its totient is φ = 30423360.

The previous prime is 63680933. The next prime is 63680987. The reversal of 63680954 is 45908636.

It can be written as a sum of positive squares in 2 ways, for example, as 63568729 + 112225 = 7973^2 + 335^2 .

It is a Harshad number since it is a multiple of its sum of digits (41).

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, 368012 + ... + 368184.

Almost surely, 2^63680954 is an apocalyptic number.

63680954 is a deficient number, since it is larger than the sum of its proper divisors (36226714).

63680954 is a wasteful number, since it uses less digits than its factorization.

63680954 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350 (or 283 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 41.

The square root of 63680954 is about 7980.0347117040. The cubic root of 63680954 is about 399.3342132682.

The spelling of 63680954 in words is "sixty-three million, six hundred eighty thousand, nine hundred fifty-four".