83854513 has 2 divisors, whose sum is σ = 83854514. Its totient is φ = 83854512.

The previous prime is 83854499. The next prime is 83854531. The reversal of 83854513 is 31545838.

Together with next prime (83854531) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 69505569 + 14348944 = 8337^2 + 3788^2 .

It is a cyclic number.

It is not a de Polignac number, because 83854513 - 2¹⁷ = 83723441 is a prime.

It is not a weakly prime, because it can be changed into another prime (83854583) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41927256 + 41927257.

It is an arithmetic number, because the mean of its divisors is an integer number (41927257).

Almost surely, 2^83854513 is an apocalyptic number.

It is an amenable number.

83854513 is a deficient number, since it is larger than the sum of its proper divisors (1).

83854513 is an equidigital number, since it uses as much as digits as its factorization.

83854513 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 57600, while the sum is 37.

The square root of 83854513 is about 9157.2109837002. The cubic root of 83854513 is about 437.6989253743.

The spelling of 83854513 in words is "eighty-three million, eight hundred fifty-four thousand, five hundred thirteen".