73842413 has 4 divisors (see below), whose sum is σ = 74573628. Its totient is φ = 73111200.

The previous prime is 73842401. The next prime is 73842469. The reversal of 73842413 is 31424837.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31424837 = 101 ⋅311137.

It can be written as a sum of positive squares in 2 ways, for example, as 35736484 + 38105929 = 5978^2 + 6173^2 .

It is a cyclic number.

It is not a de Polignac number, because 73842413 - 2¹⁰ = 73841389 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 73842413.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73812413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 365456 + ... + 365657.

It is an arithmetic number, because the mean of its divisors is an integer number (18643407).

Almost surely, 2^73842413 is an apocalyptic number.

It is an amenable number.

73842413 is a deficient number, since it is larger than the sum of its proper divisors (731215).

73842413 is a wasteful number, since it uses less digits than its factorization.

73842413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 731214.

The product of its digits is 16128, while the sum is 32.

The square root of 73842413 is about 8593.1608270764. The cubic root of 73842413 is about 419.5354141002.

The spelling of 73842413 in words is "seventy-three million, eight hundred forty-two thousand, four hundred thirteen".