83434517 has 2 divisors, whose sum is σ = 83434518. Its totient is φ = 83434516.

The previous prime is 83434513. The next prime is 83434543. The reversal of 83434517 is 71543438.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 80748196 + 2686321 = 8986^2 + 1639^2 .

It is a cyclic number.

It is not a de Polignac number, because 83434517 - 2² = 83434513 is a prime.

It is a super-2 number, since 2×83434517² = 13922637254046578, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83434511) 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 as a sum of consecutive naturals, namely, 41717258 + 41717259.

It is an arithmetic number, because the mean of its divisors is an integer number (41717259).

Almost surely, 2^83434517 is an apocalyptic number.

It is an amenable number.

83434517 is a deficient number, since it is larger than the sum of its proper divisors (1).

83434517 is an equidigital number, since it uses as much as digits as its factorization.

83434517 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 40320, while the sum is 35.

The square root of 83434517 is about 9134.2496681446. The cubic root of 83434517 is about 436.9669450148.

The spelling of 83434517 in words is "eighty-three million, four hundred thirty-four thousand, five hundred seventeen".