63968153 has 8 divisors (see below), whose sum is σ = 65803080. Its totient is φ = 62138880.

The previous prime is 63968143. The next prime is 63968167. The reversal of 63968153 is 35186936.

It can be written as a sum of positive squares in 4 ways, for example, as 399424 + 63568729 = 632^2 + 7973^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 63968153 - 2¹⁶ = 63902617 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 63968153.

It is not an unprimeable number, because it can be changed into a prime (63968143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33443 + ... + 35303.

It is an arithmetic number, because the mean of its divisors is an integer number (8225385).

Almost surely, 2^63968153 is an apocalyptic number.

It is an amenable number.

63968153 is a deficient number, since it is larger than the sum of its proper divisors (1834927).

63968153 is a wasteful number, since it uses less digits than its factorization.

63968153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2827.

The product of its digits is 116640, while the sum is 41.

The square root of 63968153 is about 7998.0093148233. The cubic root of 63968153 is about 399.9336410752.

The spelling of 63968153 in words is "sixty-three million, nine hundred sixty-eight thousand, one hundred fifty-three".