83668069 has 4 divisors (see below), whose sum is σ = 83739744. Its totient is φ = 83596396.

The previous prime is 83668051. The next prime is 83668087. The reversal of 83668069 is 96086638.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 96086638 = 2 ⋅48043319.

It is an interprime number because it is at equal distance from previous prime (83668051) and next prime (83668087).

It is a cyclic number.

It is not a de Polignac number, because 83668069 - 2¹¹ = 83666021 is a prime.

It is a super-2 number, since 2×83668069² = 14000691540377522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83668469) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34057 + ... + 36430.

It is an arithmetic number, because the mean of its divisors is an integer number (20934936).

Almost surely, 2^83668069 is an apocalyptic number.

It is an amenable number.

83668069 is a deficient number, since it is larger than the sum of its proper divisors (71675).

83668069 is a wasteful number, since it uses less digits than its factorization.

83668069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71674.

The product of its (nonzero) digits is 373248, while the sum is 46.

The square root of 83668069 is about 9147.0251448217. The cubic root of 83668069 is about 437.3742881261.

The spelling of 83668069 in words is "eighty-three million, six hundred sixty-eight thousand, sixty-nine".