73413073 has 4 divisors (see below), whose sum is σ = 74616628. Its totient is φ = 72209520.

The previous prime is 73413071. The next prime is 73413097. The reversal of 73413073 is 37031437.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 37031437 = 19 ⋅1949023.

It can be written as a sum of positive squares in 2 ways, for example, as 11444689 + 61968384 = 3383^2 + 7872^2 .

It is a cyclic number.

It is not a de Polignac number, because 73413073 - 2¹ = 73413071 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73413071) 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, 601686 + ... + 601807.

It is an arithmetic number, because the mean of its divisors is an integer number (18654157).

Almost surely, 2^73413073 is an apocalyptic number.

It is an amenable number.

73413073 is a deficient number, since it is larger than the sum of its proper divisors (1203555).

73413073 is a wasteful number, since it uses less digits than its factorization.

73413073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1203554.

The product of its (nonzero) digits is 5292, while the sum is 28.

The square root of 73413073 is about 8568.1429143076. The cubic root of 73413073 is about 418.7207352237.

The spelling of 73413073 in words is "seventy-three million, four hundred thirteen thousand, seventy-three".