63423429 has 4 divisors (see below), whose sum is σ = 84564576. Its totient is φ = 42282284.

The previous prime is 63423403. The next prime is 63423449. The reversal of 63423429 is 92432436.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 63423429 - 2⁷ = 63423301 is a prime.

It is a super-2 number, since 2×63423429² = 8045062692236082, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 63423429.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63423449) 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, 10570569 + ... + 10570574.

It is an arithmetic number, because the mean of its divisors is an integer number (21141144).

Almost surely, 2^63423429 is an apocalyptic number.

It is an amenable number.

63423429 is a deficient number, since it is larger than the sum of its proper divisors (21141147).

63423429 is a wasteful number, since it uses less digits than its factorization.

63423429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21141146.

The product of its digits is 31104, while the sum is 33.

The square root of 63423429 is about 7963.8827841700. The cubic root of 63423429 is about 398.7951851129.

The spelling of 63423429 in words is "sixty-three million, four hundred twenty-three thousand, four hundred twenty-nine".