83436047 has 4 divisors (see below), whose sum is σ = 83562936. Its totient is φ = 83309160.

The previous prime is 83436029. The next prime is 83436053. The reversal of 83436047 is 74063438.

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 83436047 - 2⁸ = 83435791 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 83435998 and 83436016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83436247) 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, 62453 + ... + 63774.

It is an arithmetic number, because the mean of its divisors is an integer number (20890734).

Almost surely, 2^83436047 is an apocalyptic number.

83436047 is a deficient number, since it is larger than the sum of its proper divisors (126889).

83436047 is a wasteful number, since it uses less digits than its factorization.

83436047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126888.

The product of its (nonzero) digits is 48384, while the sum is 35.

The square root of 83436047 is about 9134.3334184822. Note that the first 3 decimals coincide. The cubic root of 83436047 is about 436.9696159930.

The spelling of 83436047 in words is "eighty-three million, four hundred thirty-six thousand, forty-seven".