73826 has 4 divisors (see below), whose sum is σ = 110742. Its totient is φ = 36912.

The previous prime is 73823. The next prime is 73847. The reversal of 73826 is 62837.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 62837 = 31 ⋅2027.

It can be written as a sum of positive squares in only one way, i.e., 39601 + 34225 = 199^2 + 185^2 .

It is a plaindrome in base 9 and base 13.

It is a junction number, because it is equal to n+sod(n) for n = 73795 and 73804.

It is not an unprimeable number, because it can be changed into a prime (73823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18455 + ... + 18458.

2⁷³⁸²⁶ is an apocalyptic number.

73826 is a deficient number, since it is larger than the sum of its proper divisors (36916).

73826 is a wasteful number, since it uses less digits than its factorization.

73826 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36915.

The product of its digits is 2016, while the sum is 26.

The square root of 73826 is about 271.7094035914. The cubic root of 73826 is about 41.9504328329.

The spelling of 73826 in words is "seventy-three thousand, eight hundred twenty-six".