68841965 has 8 divisors (see below), whose sum is σ = 84169368. Its totient is φ = 54034240.

The previous prime is 68841937. The next prime is 68841991. The reversal of 68841965 is 56914886.

It can be written as a sum of positive squares in 4 ways, for example, as 894916 + 67947049 = 946^2 + 8243^2 .

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

It is not a de Polignac number, because 68841965 - 2⁶ = 68841901 is a prime.

It is a super-2 number, since 2×68841965² = 9478432290122450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 129626 + ... + 130155.

It is an arithmetic number, because the mean of its divisors is an integer number (10521171).

Almost surely, 2^68841965 is an apocalyptic number.

It is an amenable number.

68841965 is a deficient number, since it is larger than the sum of its proper divisors (15327403).

68841965 is a wasteful number, since it uses less digits than its factorization.

68841965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259839.

The product of its digits is 414720, while the sum is 47.

The square root of 68841965 is about 8297.1058207064. The cubic root of 68841965 is about 409.8432178657.

The spelling of 68841965 in words is "sixty-eight million, eight hundred forty-one thousand, nine hundred sixty-five".