73739 has 4 divisors (see below), whose sum is σ = 77640. Its totient is φ = 69840.

The previous prime is 73727. The next prime is 73751. The reversal of 73739 is 93737.

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

It is an interprime number because it is at equal distance from previous prime (73727) and next prime (73751).

It is a cyclic number.

It is not a de Polignac number, because 73739 - 2⁸ = 73483 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73709) 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 in 3 ways as a sum of consecutive naturals, for example, 1922 + ... + 1959.

It is an arithmetic number, because the mean of its divisors is an integer number (19410).

2⁷³⁷³⁹ is an apocalyptic number.

73739 is a deficient number, since it is larger than the sum of its proper divisors (3901).

73739 is a wasteful number, since it uses less digits than its factorization.

73739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3900.

The product of its digits is 3969, while the sum is 29.

The square root of 73739 is about 271.5492588832. The cubic root of 73739 is about 41.9339475737.

The spelling of 73739 in words is "seventy-three thousand, seven hundred thirty-nine".