73038073 has 4 divisors (see below), whose sum is σ = 73309860. Its totient is φ = 72766288.

The previous prime is 73038067. The next prime is 73038083. The reversal of 73038073 is 37083037.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 37083037 = 31 ⋅1196227.

It can be written as a sum of positive squares in 2 ways, for example, as 2930944 + 70107129 = 1712^2 + 8373^2 .

It is a cyclic number.

It is not a de Polignac number, because 73038073 - 2⁹ = 73037561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73038013) 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, 135490 + ... + 136027.

It is an arithmetic number, because the mean of its divisors is an integer number (18327465).

Almost surely, 2^73038073 is an apocalyptic number.

It is an amenable number.

73038073 is a deficient number, since it is larger than the sum of its proper divisors (271787).

73038073 is a wasteful number, since it uses less digits than its factorization.

73038073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271786.

The product of its (nonzero) digits is 10584, while the sum is 31.

The square root of 73038073 is about 8546.2315086826. The cubic root of 73038073 is about 418.0065645360.

It can be divided in two parts, 7303 and 8073, that added together give a square (15376 = 124²).

The spelling of 73038073 in words is "seventy-three million, thirty-eight thousand, seventy-three".