78582273 has 16 divisors (see below), whose sum is σ = 130630656. Its totient is φ = 40821840.

The previous prime is 78582247. The next prime is 78582289. The reversal of 78582273 is 37228587.

It is not a de Polignac number, because 78582273 - 2⁶ = 78582209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (78582293) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 169861 + ... + 170322.

It is an arithmetic number, because the mean of its divisors is an integer number (8164416).

Almost surely, 2^78582273 is an apocalyptic number.

It is an amenable number.

78582273 is a deficient number, since it is larger than the sum of its proper divisors (52048383).

78582273 is a wasteful number, since it uses less digits than its factorization.

78582273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340204.

The product of its digits is 188160, while the sum is 42.

The square root of 78582273 is about 8864.6642914439. The cubic root of 78582273 is about 428.3264188938.

The spelling of 78582273 in words is "seventy-eight million, five hundred eighty-two thousand, two hundred seventy-three".