73779 has 4 divisors (see below), whose sum is σ = 98376. Its totient is φ = 49184.

The previous prime is 73771. The next prime is 73783. The reversal of 73779 is 97737.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 97737 = 3 ⋅32579.

It is a cyclic number.

It is not a de Polignac number, because 73779 - 2³ = 73771 is a prime.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (73771) 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, 12294 + ... + 12299.

It is an arithmetic number, because the mean of its divisors is an integer number (24594).

2⁷³⁷⁷⁹ is an apocalyptic number.

73779 is a deficient number, since it is larger than the sum of its proper divisors (24597).

73779 is a wasteful number, since it uses less digits than its factorization.

73779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24596.

The product of its digits is 9261, while the sum is 33.

The square root of 73779 is about 271.6229003600. The cubic root of 73779 is about 41.9415286126.

The spelling of 73779 in words is "seventy-three thousand, seven hundred seventy-nine".