73878 has 16 divisors (see below), whose sum is σ = 168960. Its totient is φ = 21096.

The previous prime is 73877. The next prime is 73883. The reversal of 73878 is 87837.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73877) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 838 + ... + 921.

It is an arithmetic number, because the mean of its divisors is an integer number (10560).

2⁷³⁸⁷⁸ is an apocalyptic number.

73878 is an abundant number, since it is smaller than the sum of its proper divisors (95082).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84480).

73878 is a wasteful number, since it uses less digits than its factorization.

73878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1771.

The product of its digits is 9408, while the sum is 33.

The square root of 73878 is about 271.8050772153. The cubic root of 73878 is about 41.9602799082.

The spelling of 73878 in words is "seventy-three thousand, eight hundred seventy-eight".