82770471 has 32 divisors (see below), whose sum is σ = 142801920. Its totient is φ = 46399392.

The previous prime is 82770461. The next prime is 82770487. The reversal of 82770471 is 17407728.

It is not a de Polignac number, because 82770471 - 2⁵ = 82770439 is a prime.

It is a super-3 number, since 3×82770471³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82770461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5886 + ... + 14148.

It is an arithmetic number, because the mean of its divisors is an integer number (4462560).

Almost surely, 2^82770471 is an apocalyptic number.

82770471 is a deficient number, since it is larger than the sum of its proper divisors (60031449).

82770471 is a wasteful number, since it uses less digits than its factorization.

82770471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8332 (or 8326 counting only the distinct ones).

The product of its (nonzero) digits is 21952, while the sum is 36.

The square root of 82770471 is about 9097.8278176716. The cubic root of 82770471 is about 435.8045988446.

The spelling of 82770471 in words is "eighty-two million, seven hundred seventy thousand, four hundred seventy-one".