82528906 has 4 divisors (see below), whose sum is σ = 123793362. Its totient is φ = 41264452.

The previous prime is 82528891. The next prime is 82528949. The reversal of 82528906 is 60982528.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 75846681 + 6682225 = 8709^2 + 2585^2 .

It is a super-2 number, since 2×82528906² = 13622040651113672, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20632225 + ... + 20632228.

Almost surely, 2^82528906 is an apocalyptic number.

82528906 is a deficient number, since it is larger than the sum of its proper divisors (41264456).

82528906 is a wasteful number, since it uses less digits than its factorization.

82528906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41264455.

The product of its (nonzero) digits is 69120, while the sum is 40.

The square root of 82528906 is about 9084.5421458651. The cubic root of 82528906 is about 435.3802215761.

The spelling of 82528906 in words is "eighty-two million, five hundred twenty-eight thousand, nine hundred six".