82905475 has 12 divisors (see below), whose sum is σ = 102929176. Its totient is φ = 66242880.

The previous prime is 82905469. The next prime is 82905491. The reversal of 82905475 is 57450928.

It is not a de Polignac number, because 82905475 - 2¹¹ = 82903427 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 26599 + ... + 29551.

Almost surely, 2^82905475 is an apocalyptic number.

82905475 is a deficient number, since it is larger than the sum of its proper divisors (20023701).

82905475 is a wasteful number, since it uses less digits than its factorization.

82905475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4086 (or 4081 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 40.

The square root of 82905475 is about 9105.2443679453. The cubic root of 82905475 is about 436.0414119827.

The spelling of 82905475 in words is "eighty-two million, nine hundred five thousand, four hundred seventy-five".