82904143 has 8 divisors (see below), whose sum is σ = 94970880. Its totient is φ = 70893240.

The previous prime is 82904141. The next prime is 82904153. The reversal of 82904143 is 34140928.

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 82904143 - 2¹ = 82904141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82904141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10723 + ... + 16756.

It is an arithmetic number, because the mean of its divisors is an integer number (11871360).

Almost surely, 2^82904143 is an apocalyptic number.

82904143 is a deficient number, since it is larger than the sum of its proper divisors (12066737).

82904143 is a wasteful number, since it uses less digits than its factorization.

82904143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27917.

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 82904143 is about 9105.1712229919. The cubic root of 82904143 is about 436.0390767518.

The spelling of 82904143 in words is "eighty-two million, nine hundred four thousand, one hundred forty-three".