438763 has 4 divisors (see below), whose sum is σ = 472528. Its totient is φ = 405000.

The previous prime is 438761. The next prime is 438769. The reversal of 438763 is 367834.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 367834 = 2 ⋅183917.

It is a cyclic number.

It is not a de Polignac number, because 438763 - 2¹ = 438761 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

438763 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (438761) 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, 16863 + ... + 16888.

It is an arithmetic number, because the mean of its divisors is an integer number (118132).

2⁴³⁸⁷⁶³ is an apocalyptic number.

438763 is a deficient number, since it is larger than the sum of its proper divisors (33765).

438763 is a wasteful number, since it uses less digits than its factorization.

438763 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33764.

The product of its digits is 12096, while the sum is 31.

The square root of 438763 is about 662.3918779695. The cubic root of 438763 is about 75.9877057675.

The spelling of 438763 in words is "four hundred thirty-eight thousand, seven hundred sixty-three".