82862409 has 16 divisors (see below), whose sum is σ = 126397440. Its totient is φ = 47300880.

The previous prime is 82862383. The next prime is 82862413. The reversal of 82862409 is 90426828.

It is not a de Polignac number, because 82862409 - 2⁷ = 82862281 is a prime.

It is not an unprimeable number, because it can be changed into a prime (82862449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31474 + ... + 34004.

It is an arithmetic number, because the mean of its divisors is an integer number (7899840).

Almost surely, 2^82862409 is an apocalyptic number.

It is an amenable number.

82862409 is a deficient number, since it is larger than the sum of its proper divisors (43535031).

82862409 is a wasteful number, since it uses less digits than its factorization.

82862409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4100.

The product of its (nonzero) digits is 55296, while the sum is 39.

The square root of 82862409 is about 9102.8791599142. The cubic root of 82862409 is about 435.9658970184.

The spelling of 82862409 in words is "eighty-two million, eight hundred sixty-two thousand, four hundred nine".