63901263 has 4 divisors (see below), whose sum is σ = 85201688. Its totient is φ = 42600840.

The previous prime is 63901259. The next prime is 63901273. The reversal of 63901263 is 36210936.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 63901263 - 2² = 63901259 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 63901263.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63901213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10650208 + ... + 10650213.

It is an arithmetic number, because the mean of its divisors is an integer number (21300422).

Almost surely, 2^63901263 is an apocalyptic number.

63901263 is a deficient number, since it is larger than the sum of its proper divisors (21300425).

63901263 is a wasteful number, since it uses less digits than its factorization.

63901263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21300424.

The product of its (nonzero) digits is 5832, while the sum is 30.

The square root of 63901263 is about 7993.8265555365. The cubic root of 63901263 is about 399.7941920425.

The spelling of 63901263 in words is "sixty-three million, nine hundred one thousand, two hundred sixty-three".