83207861 has 8 divisors (see below), whose sum is σ = 91709184. Its totient is φ = 74862720.

The previous prime is 83207851. The next prime is 83207867. The reversal of 83207861 is 16870238.

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 83207861 - 2⁶ = 83207797 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83207867) 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, 37925 + ... + 40058.

It is an arithmetic number, because the mean of its divisors is an integer number (11463648).

Almost surely, 2^83207861 is an apocalyptic number.

It is an amenable number.

83207861 is a deficient number, since it is larger than the sum of its proper divisors (8501323).

83207861 is a wasteful number, since it uses less digits than its factorization.

83207861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78091.

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 83207861 is about 9121.8343001833. The cubic root of 83207861 is about 436.5709018931.

The spelling of 83207861 in words is "eighty-three million, two hundred seven thousand, eight hundred sixty-one".