63857012 has 6 divisors (see below), whose sum is σ = 111749778. Its totient is φ = 31928504.

The previous prime is 63857011. The next prime is 63857023. The reversal of 63857012 is 21075836.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 61528336 + 2328676 = 7844^2 + 1526^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 63857012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63857011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7982123 + ... + 7982130.

It is an arithmetic number, because the mean of its divisors is an integer number (18624963).

Almost surely, 2^63857012 is an apocalyptic number.

It is an amenable number.

63857012 is a deficient number, since it is larger than the sum of its proper divisors (47892766).

63857012 is a wasteful number, since it uses less digits than its factorization.

63857012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15964257 (or 15964255 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 63857012 is about 7991.0582528223. The cubic root of 63857012 is about 399.7018862089.

The spelling of 63857012 in words is "sixty-three million, eight hundred fifty-seven thousand, twelve".