63953361 has 16 divisors (see below), whose sum is σ = 95726400. Its totient is φ = 42194304.

The previous prime is 63953359. The next prime is 63953387. The reversal of 63953361 is 16335936.

63953361 is a `hidden beast` number, since 63 + 9 + 533 + 61 = 666.

It is not a de Polignac number, because 63953361 - 2¹ = 63953359 is a prime.

It is not an unprimeable number, because it can be changed into a prime (63953311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9591 + ... + 14828.

It is an arithmetic number, because the mean of its divisors is an integer number (5982900).

Almost surely, 2^63953361 is an apocalyptic number.

It is an amenable number.

63953361 is a deficient number, since it is larger than the sum of its proper divisors (31773039).

63953361 is a wasteful number, since it uses less digits than its factorization.

63953361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24525 (or 24519 counting only the distinct ones).

The product of its digits is 43740, while the sum is 36.

The square root of 63953361 is about 7997.0845312526. The cubic root of 63953361 is about 399.9028118047.

The spelling of 63953361 in words is "sixty-three million, nine hundred fifty-three thousand, three hundred sixty-one".