63428 has 12 divisors (see below), whose sum is σ = 112812. Its totient is φ = 31200.

The previous prime is 63421. The next prime is 63439. The reversal of 63428 is 82436.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 43264 + 20164 = 208^2 + 142^2 .

It is a super-2 number, since 2×63428² = 8046222368, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63421) 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, 326 + ... + 482.

It is an arithmetic number, because the mean of its divisors is an integer number (9401).

2⁶³⁴²⁸ is an apocalyptic number.

It is an amenable number.

63428 is a deficient number, since it is larger than the sum of its proper divisors (49384).

63428 is a wasteful number, since it uses less digits than its factorization.

63428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262 (or 260 counting only the distinct ones).

The product of its digits is 1152, while the sum is 23.

The square root of 63428 is about 251.8491612057. The cubic root of 63428 is about 39.8804765426.

The spelling of 63428 in words is "sixty-three thousand, four hundred twenty-eight".