82528947 has 12 divisors (see below), whose sum is σ = 119309424. Its totient is φ = 54972720.

The previous prime is 82528891. The next prime is 82528949. The reversal of 82528947 is 74982528.

82528947 is a `hidden beast` number, since 82 + 528 + 9 + 47 = 666.

It is not a de Polignac number, because 82528947 - 2⁶ = 82528883 is a prime.

It is a super-2 number, since 2×82528947² = 13622054185857618, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (82528949) 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, 9922 + ... + 16232.

It is an arithmetic number, because the mean of its divisors is an integer number (9942452).

Almost surely, 2^82528947 is an apocalyptic number.

82528947 is a deficient number, since it is larger than the sum of its proper divisors (36780477).

82528947 is a wasteful number, since it uses less digits than its factorization.

82528947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7770 (or 7767 counting only the distinct ones).

The product of its digits is 322560, while the sum is 45.

The square root of 82528947 is about 9084.5444024453. The cubic root of 82528947 is about 435.3802936744.

The spelling of 82528947 in words is "eighty-two million, five hundred twenty-eight thousand, nine hundred forty-seven".