73782493 has 4 divisors (see below), whose sum is σ = 75582108. Its totient is φ = 71982880.

The previous prime is 73782481. The next prime is 73782517. The reversal of 73782493 is 39428737.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 39428737 = 137 ⋅287801.

It can be written as a sum of positive squares in 2 ways, for example, as 5008644 + 68773849 = 2238^2 + 8293^2 .

It is not a de Polignac number, because 73782493 - 2⁵ = 73782461 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73782463) 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, 899746 + ... + 899827.

It is an arithmetic number, because the mean of its divisors is an integer number (18895527).

Almost surely, 2^73782493 is an apocalyptic number.

It is an amenable number.

73782493 is a deficient number, since it is larger than the sum of its proper divisors (1799615).

73782493 is a wasteful number, since it uses less digits than its factorization.

73782493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1799614.

The product of its digits is 254016, while the sum is 43.

The square root of 73782493 is about 8589.6736259301. The cubic root of 73782493 is about 419.4219049677.

The spelling of 73782493 in words is "seventy-three million, seven hundred eighty-two thousand, four hundred ninety-three".