63429428 has 6 divisors (see below), whose sum is σ = 111001506. Its totient is φ = 31714712.

The previous prime is 63429371. The next prime is 63429437. The reversal of 63429428 is 82492436.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 36264484 + 27164944 = 6022^2 + 5212^2 .

It is a junction number, because it is equal to n+sod(n) for n = 63429391 and 63429400.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7928675 + ... + 7928682.

It is an arithmetic number, because the mean of its divisors is an integer number (18500251).

Almost surely, 2^63429428 is an apocalyptic number.

It is an amenable number.

63429428 is a deficient number, since it is larger than the sum of its proper divisors (47572078).

63429428 is a wasteful number, since it uses less digits than its factorization.

63429428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15857361 (or 15857359 counting only the distinct ones).

The product of its digits is 82944, while the sum is 38.

The square root of 63429428 is about 7964.2594131532. The cubic root of 63429428 is about 398.8077582631.

The spelling of 63429428 in words is "sixty-three million, four hundred twenty-nine thousand, four hundred twenty-eight".