73945 has 8 divisors (see below), whose sum is σ = 92736. Its totient is φ = 56496.

The previous prime is 73943. The next prime is 73951. The reversal of 73945 is 54937.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 73945 - 2¹ = 73943 is a prime.

It is not an unprimeable number, because it can be changed into a prime (73943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 207 + ... + 436.

It is an arithmetic number, because the mean of its divisors is an integer number (11592).

2⁷³⁹⁴⁵ is an apocalyptic number.

It is an amenable number.

73945 is a deficient number, since it is larger than the sum of its proper divisors (18791).

73945 is a wasteful number, since it uses less digits than its factorization.

73945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 671.

The product of its digits is 3780, while the sum is 28.

The square root of 73945 is about 271.9282993732. The cubic root of 73945 is about 41.9729606761.

It can be divided in two parts, 739 and 45, that added together give a square (784 = 28²).

The spelling of 73945 in words is "seventy-three thousand, nine hundred forty-five".