63291 has 12 divisors (see below), whose sum is σ = 90872. Its totient is φ = 39168.

The previous prime is 63281. The next prime is 63299. The reversal of 63291 is 19236.

It is a de Polignac number, because none of the positive numbers 2^k-63291 is a prime.

It is a hoax number, since the sum of its digits (21) coincides with the sum of the digits of its distinct prime factors.

It is an Ulam number.

It is a d-powerful number, because it can be written as 6 + 3⁷ + 2¹¹ + 9⁵ + 1 .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63299) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 831 + ... + 903.

2⁶³²⁹¹ is an apocalyptic number.

63291 is a deficient number, since it is larger than the sum of its proper divisors (27581).

63291 is a wasteful number, since it uses less digits than its factorization.

63291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110 (or 93 counting only the distinct ones).

The product of its digits is 324, while the sum is 21.

The square root of 63291 is about 251.5770259781. The cubic root of 63291 is about 39.8517428409.

The spelling of 63291 in words is "sixty-three thousand, two hundred ninety-one".