83665007 has 8 divisors (see below), whose sum is σ = 92438496. Its totient is φ = 75319552.

The previous prime is 83665003. The next prime is 83665027. The reversal of 83665007 is 70056638.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 83665007 - 2² = 83665003 is a prime.

It is a super-3 number, since 3×83665007³ (a number of 25 digits) contains 333 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 (83665003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 106598 + ... + 107379.

It is an arithmetic number, because the mean of its divisors is an integer number (11554812).

Almost surely, 2^83665007 is an apocalyptic number.

83665007 is a deficient number, since it is larger than the sum of its proper divisors (8773489).

83665007 is a wasteful number, since it uses less digits than its factorization.

83665007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214017.

The product of its (nonzero) digits is 30240, while the sum is 35.

The square root of 83665007 is about 9146.8577664682. The cubic root of 83665007 is about 437.3689525327.

The spelling of 83665007 in words is "eighty-three million, six hundred sixty-five thousand, seven".