83953069 has 2 divisors, whose sum is σ = 83953070. Its totient is φ = 83953068.

The previous prime is 83952989. The next prime is 83953091. The reversal of 83953069 is 96035938.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 72897444 + 11055625 = 8538^2 + 3325^2 .

It is a cyclic number.

It is not a de Polignac number, because 83953069 - 2¹³ = 83944877 is a prime.

It is a super-3 number, since 3×83953069³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83953099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41976534 + 41976535.

It is an arithmetic number, because the mean of its divisors is an integer number (41976535).

Almost surely, 2^83953069 is an apocalyptic number.

It is an amenable number.

83953069 is a deficient number, since it is larger than the sum of its proper divisors (1).

83953069 is an equidigital number, since it uses as much as digits as its factorization.

83953069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 174960, while the sum is 43.

The square root of 83953069 is about 9162.5907362492. The cubic root of 83953069 is about 437.8703372022.

The spelling of 83953069 in words is "eighty-three million, nine hundred fifty-three thousand, sixty-nine".