68846861 has 4 divisors (see below), whose sum is σ = 72470400. Its totient is φ = 65223324.

The previous prime is 68846851. The next prime is 68846863. The reversal of 68846861 is 16864886.

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: 16864886 = 2 ⋅8432443.

It is a cyclic number.

It is not a de Polignac number, because 68846861 - 2¹⁰ = 68845837 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 (68846863) 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, 1811741 + ... + 1811778.

It is an arithmetic number, because the mean of its divisors is an integer number (18117600).

Almost surely, 2^68846861 is an apocalyptic number.

It is an amenable number.

68846861 is a deficient number, since it is larger than the sum of its proper divisors (3623539).

68846861 is a wasteful number, since it uses less digits than its factorization.

68846861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3623538.

The product of its digits is 442368, while the sum is 47.

The square root of 68846861 is about 8297.4008581001. The cubic root of 68846861 is about 409.8529335715.

The spelling of 68846861 in words is "sixty-eight million, eight hundred forty-six thousand, eight hundred sixty-one".