73979 has 4 divisors (see below), whose sum is σ = 76560. Its totient is φ = 71400.

The previous prime is 73973. The next prime is 73999. The reversal of 73979 is 97937.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 73979 - 2¹⁶ = 8443 is a prime.

It is a plaindrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (73973) 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, 1247 + ... + 1304.

It is an arithmetic number, because the mean of its divisors is an integer number (19140).

2⁷³⁹⁷⁹ is an apocalyptic number.

73979 is a deficient number, since it is larger than the sum of its proper divisors (2581).

73979 is a wasteful number, since it uses less digits than its factorization.

73979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2580.

The product of its digits is 11907, while the sum is 35.

The square root of 73979 is about 271.9908086682. The cubic root of 73979 is about 41.9793927630.

It can be divided in two parts, 739 and 79, that added together give a palindrome (818).

The spelling of 73979 in words is "seventy-three thousand, nine hundred seventy-nine".