82904387 has 8 divisors (see below), whose sum is σ = 85314240. Its totient is φ = 80516520.

The previous prime is 82904377. The next prime is 82904389. The reversal of 82904387 is 78340928.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 82904387 - 2⁸ = 82904131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82904389) 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 7 ways as a sum of consecutive naturals, for example, 2312 + ... + 13082.

It is an arithmetic number, because the mean of its divisors is an integer number (10664280).

Almost surely, 2^82904387 is an apocalyptic number.

82904387 is a deficient number, since it is larger than the sum of its proper divisors (2409853).

82904387 is a wasteful number, since it uses less digits than its factorization.

82904387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10993.

The product of its (nonzero) digits is 96768, while the sum is 41.

The square root of 82904387 is about 9105.1846219613. The cubic root of 82904387 is about 436.0395045287.

The spelling of 82904387 in words is "eighty-two million, nine hundred four thousand, three hundred eighty-seven".