63870068 has 6 divisors (see below), whose sum is σ = 111772626. Its totient is φ = 31935032.

The previous prime is 63870047. The next prime is 63870089. The reversal of 63870068 is 86007836.

It is an interprime number because it is at equal distance from previous prime (63870047) and next prime (63870089).

It can be written as a sum of positive squares in only one way, i.e., 53553124 + 10316944 = 7318^2 + 3212^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7983755 + ... + 7983762.

It is an arithmetic number, because the mean of its divisors is an integer number (18628771).

Almost surely, 2^63870068 is an apocalyptic number.

It is an amenable number.

63870068 is a deficient number, since it is larger than the sum of its proper divisors (47902558).

63870068 is a wasteful number, since it uses less digits than its factorization.

63870068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15967521 (or 15967519 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 63870068 is about 7991.8751241495. The cubic root of 63870068 is about 399.7291249415.

The spelling of 63870068 in words is "sixty-three million, eight hundred seventy thousand, sixty-eight".