73412873 has 4 divisors (see below), whose sum is σ = 73435908. Its totient is φ = 73389840.

The previous prime is 73412869. The next prime is 73412879. The reversal of 73412873 is 37821437.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 37821437 = 37 ⋅1022201.

It can be written as a sum of positive squares in 2 ways, for example, as 68690944 + 4721929 = 8288^2 + 2173^2 .

It is a cyclic number.

It is not a de Polignac number, because 73412873 - 2² = 73412869 is a prime.

It is a super-3 number, since 3×73412873³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (73412879) 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, 5786 + ... + 13427.

It is an arithmetic number, because the mean of its divisors is an integer number (18358977).

Almost surely, 2^73412873 is an apocalyptic number.

It is an amenable number.

73412873 is a deficient number, since it is larger than the sum of its proper divisors (23035).

73412873 is a wasteful number, since it uses less digits than its factorization.

73412873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23034.

The product of its digits is 28224, while the sum is 35.

The square root of 73412873 is about 8568.1312431592. The cubic root of 73412873 is about 418.7203549816.

The spelling of 73412873 in words is "seventy-three million, four hundred twelve thousand, eight hundred seventy-three".