63456429 has 4 divisors (see below), whose sum is σ = 84608576. Its totient is φ = 42304284.

The previous prime is 63456413. The next prime is 63456431. The reversal of 63456429 is 92465436.

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 not a de Polignac number, because 63456429 - 2⁴ = 63456413 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63456469) 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, 10576069 + ... + 10576074.

It is an arithmetic number, because the mean of its divisors is an integer number (21152144).

Almost surely, 2^63456429 is an apocalyptic number.

It is an amenable number.

63456429 is a deficient number, since it is larger than the sum of its proper divisors (21152147).

63456429 is a wasteful number, since it uses less digits than its factorization.

63456429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21152146.

The product of its digits is 155520, while the sum is 39.

The square root of 63456429 is about 7965.9543684357. The cubic root of 63456429 is about 398.8643391542.

The spelling of 63456429 in words is "sixty-three million, four hundred fifty-six thousand, four hundred twenty-nine".