82974347 has 4 divisors (see below), whose sum is σ = 83321760. Its totient is φ = 82626936.

The previous prime is 82974337. The next prime is 82974371. The reversal of 82974347 is 74347928.

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

It is a cyclic number.

It is not a de Polignac number, because 82974347 - 2¹⁶ = 82908811 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 82974298 and 82974307.

It is not an unprimeable number, because it can be changed into a prime (82974337) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 173348 + ... + 173825.

It is an arithmetic number, because the mean of its divisors is an integer number (20830440).

Almost surely, 2^82974347 is an apocalyptic number.

82974347 is a deficient number, since it is larger than the sum of its proper divisors (347413).

82974347 is a wasteful number, since it uses less digits than its factorization.

82974347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 347412.

The product of its digits is 338688, while the sum is 44.

The square root of 82974347 is about 9109.0255790617. The cubic root of 82974347 is about 436.1621226759.

The spelling of 82974347 in words is "eighty-two million, nine hundred seventy-four thousand, three hundred forty-seven".