83869 has 2 divisors, whose sum is σ = 83870. Its totient is φ = 83868.

The previous prime is 83857. The next prime is 83873. The reversal of 83869 is 96838.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 56644 + 27225 = 238^2 + 165^2 .

It is a cyclic number.

It is not a de Polignac number, because 83869 - 2⁹ = 83357 is a prime.

It is a super-2 number, since 2×83869² = 14068018322, which contains 22 as substring.

It is a plaindrome in base 16.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41934 + 41935.

It is an arithmetic number, because the mean of its divisors is an integer number (41935).

2⁸³⁸⁶⁹ is an apocalyptic number.

It is an amenable number.

83869 is a deficient number, since it is larger than the sum of its proper divisors (1).

83869 is an equidigital number, since it uses as much as digits as its factorization.

83869 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10368, while the sum is 34.

The square root of 83869 is about 289.6014502726. The cubic root of 83869 is about 43.7724130057.

It can be divided in two parts, 83 and 869, that multiplied together give a palindrome (72127).

The spelling of 83869 in words is "eighty-three thousand, eight hundred sixty-nine".