83260861 has 4 divisors (see below), whose sum is σ = 83860000. Its totient is φ = 82661724.

The previous prime is 83260843. The next prime is 83260871. The reversal of 83260861 is 16806238.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-83260861 is a prime.

It is a super-2 number, since 2×83260861² = 13864741948922642, 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 (83260871) 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, 299361 + ... + 299638.

It is an arithmetic number, because the mean of its divisors is an integer number (20965000).

Almost surely, 2^83260861 is an apocalyptic number.

It is an amenable number.

83260861 is a deficient number, since it is larger than the sum of its proper divisors (599139).

83260861 is a wasteful number, since it uses less digits than its factorization.

83260861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 599138.

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 83260861 is about 9124.7389551702. The cubic root of 83260861 is about 436.6635748151.

The spelling of 83260861 in words is "eighty-three million, two hundred sixty thousand, eight hundred sixty-one".