82777293 has 12 divisors (see below), whose sum is σ = 122111808. Its totient is φ = 54010440.

The previous prime is 82777291. The next prime is 82777309. The reversal of 82777293 is 39277728.

It is not a de Polignac number, because 82777293 - 2¹ = 82777291 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82777291) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 97423 + ... + 98268.

It is an arithmetic number, because the mean of its divisors is an integer number (10175984).

Almost surely, 2^82777293 is an apocalyptic number.

It is an amenable number.

82777293 is a deficient number, since it is larger than the sum of its proper divisors (39334515).

82777293 is a wasteful number, since it uses less digits than its factorization.

82777293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195744 (or 195741 counting only the distinct ones).

The product of its digits is 296352, while the sum is 45.

The square root of 82777293 is about 9098.2027346064. The cubic root of 82777293 is about 435.8165716221.

The spelling of 82777293 in words is "eighty-two million, seven hundred seventy-seven thousand, two hundred ninety-three".