82745278 has 16 divisors (see below), whose sum is σ = 154744704. Its totient is φ = 32238360.

The previous prime is 82745269. The next prime is 82745309. The reversal of 82745278 is 87254728.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 268500 + ... + 268807.

It is an arithmetic number, because the mean of its divisors is an integer number (9671544).

Almost surely, 2^82745278 is an apocalyptic number.

82745278 is a deficient number, since it is larger than the sum of its proper divisors (71999426).

82745278 is a wasteful number, since it uses less digits than its factorization.

82745278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 537327.

The product of its digits is 250880, while the sum is 43.

The square root of 82745278 is about 9096.4431510344. The cubic root of 82745278 is about 435.7603788097.

The spelling of 82745278 in words is "eighty-two million, seven hundred forty-five thousand, two hundred seventy-eight".