63842 has 8 divisors (see below), whose sum is σ = 96876. Its totient is φ = 31552.

The previous prime is 63841. The next prime is 63853. The reversal of 63842 is 24836.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 63001 + 841 = 251^2 + 29^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (63841) 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, 158 + ... + 390.

2⁶³⁸⁴² is an apocalyptic number.

63842 is a deficient number, since it is larger than the sum of its proper divisors (33034).

63842 is a wasteful number, since it uses less digits than its factorization.

63842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 372.

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

The square root of 63842 is about 252.6697449241. The cubic root of 63842 is about 39.9670562084.

It can be divided in two parts, 638 and 42, that multiplied together give a triangular number (26796 = T₂₃₁).

The spelling of 63842 in words is "sixty-three thousand, eight hundred forty-two".