83782273 has 4 divisors (see below), whose sum is σ = 88710660. Its totient is φ = 78853888.

The previous prime is 83782271. The next prime is 83782277. The reversal of 83782273 is 37228738.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 55234624 + 28547649 = 7432^2 + 5343^2 .

It is not a de Polignac number, because 83782273 - 2¹ = 83782271 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83782271) 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, 2464168 + ... + 2464201.

It is an arithmetic number, because the mean of its divisors is an integer number (22177665).

Almost surely, 2^83782273 is an apocalyptic number.

It is an amenable number.

83782273 is a deficient number, since it is larger than the sum of its proper divisors (4928387).

83782273 is a wasteful number, since it uses less digits than its factorization.

83782273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4928386.

The product of its digits is 112896, while the sum is 40.

The square root of 83782273 is about 9153.2657013767. The cubic root of 83782273 is about 437.5731978751.

The spelling of 83782273 in words is "eighty-three million, seven hundred eighty-two thousand, two hundred seventy-three".