82771375 has 16 divisors (see below), whose sum is σ = 103615200. Its totient is φ = 66014400.

The previous prime is 82771373. The next prime is 82771387. The reversal of 82771375 is 57317728.

It is not a de Polignac number, because 82771375 - 2¹ = 82771373 is a prime.

It is a super-2 number, since 2×82771375² = 13702201038781250, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82771373) 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, 50316 + ... + 51934.

It is an arithmetic number, because the mean of its divisors is an integer number (6475950).

Almost surely, 2^82771375 is an apocalyptic number.

82771375 is a deficient number, since it is larger than the sum of its proper divisors (20843825).

82771375 is a wasteful number, since it uses less digits than its factorization.

82771375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2043 (or 2033 counting only the distinct ones).

The product of its digits is 82320, while the sum is 40.

The square root of 82771375 is about 9097.8774997249. The cubic root of 82771375 is about 435.8061854246.

The spelling of 82771375 in words is "eighty-two million, seven hundred seventy-one thousand, three hundred seventy-five".