63427823 has 4 divisors (see below), whose sum is σ = 63478320. Its totient is φ = 63377328.

The previous prime is 63427811. The next prime is 63427831. The reversal of 63427823 is 32872436.

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

It is a cyclic number.

It is not a de Polignac number, because 63427823 - 2⁴ = 63427807 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63427423) 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, 23315 + ... + 25892.

It is an arithmetic number, because the mean of its divisors is an integer number (15869580).

Almost surely, 2^63427823 is an apocalyptic number.

63427823 is a deficient number, since it is larger than the sum of its proper divisors (50497).

63427823 is a wasteful number, since it uses less digits than its factorization.

63427823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50496.

The product of its digits is 48384, while the sum is 35.

The square root of 63427823 is about 7964.1586498512. The cubic root of 63427823 is about 398.8043944624.

The spelling of 63427823 in words is "sixty-three million, four hundred twenty-seven thousand, eight hundred twenty-three".