82235047 has 4 divisors (see below), whose sum is σ = 82260136. Its totient is φ = 82209960.

The previous prime is 82235029. The next prime is 82235057. The reversal of 82235047 is 74053228.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-82235047 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 (82235017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6729 + ... + 14482.

It is an arithmetic number, because the mean of its divisors is an integer number (20565034).

Almost surely, 2^82235047 is an apocalyptic number.

82235047 is a deficient number, since it is larger than the sum of its proper divisors (25089).

82235047 is a wasteful number, since it uses less digits than its factorization.

82235047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25088.

The product of its (nonzero) digits is 13440, while the sum is 31.

The square root of 82235047 is about 9068.3541505612. The cubic root of 82235047 is about 434.8628571946.

The spelling of 82235047 in words is "eighty-two million, two hundred thirty-five thousand, forty-seven".