83278753 has 4 divisors (see below), whose sum is σ = 83541780. Its totient is φ = 83015728.

The previous prime is 83278721. The next prime is 83278763. The reversal of 83278753 is 35787238.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 35787238 = 2 ⋅17893619.

It can be written as a sum of positive squares in 2 ways, for example, as 21687649 + 61591104 = 4657^2 + 7848^2 .

It is a cyclic number.

It is not a de Polignac number, because 83278753 - 2⁵ = 83278721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83278763) 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, 131038 + ... + 131671.

It is an arithmetic number, because the mean of its divisors is an integer number (20885445).

Almost surely, 2^83278753 is an apocalyptic number.

It is an amenable number.

83278753 is a deficient number, since it is larger than the sum of its proper divisors (263027).

83278753 is a wasteful number, since it uses less digits than its factorization.

83278753 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263026.

The product of its digits is 282240, while the sum is 43.

The square root of 83278753 is about 9125.7193141144. The cubic root of 83278753 is about 436.6948509154.

The spelling of 83278753 in words is "eighty-three million, two hundred seventy-eight thousand, seven hundred fifty-three".