68921446 has 8 divisors (see below), whose sum is σ = 112780584. Its totient is φ = 31327920.

The previous prime is 68921441. The next prime is 68921459. The reversal of 68921446 is 64412986.

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

It is a junction number, because it is equal to n+sod(n) for n = 68921399 and 68921408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68921441) 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, 1566375 + ... + 1566418.

It is an arithmetic number, because the mean of its divisors is an integer number (14097573).

Almost surely, 2^68921446 is an apocalyptic number.

68921446 is a deficient number, since it is larger than the sum of its proper divisors (43859138).

68921446 is a wasteful number, since it uses less digits than its factorization.

68921446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3132806.

The product of its digits is 82944, while the sum is 40.

The square root of 68921446 is about 8301.8941212232. The cubic root of 68921446 is about 410.0008843923. Note that the first 3 decimals are identical.

It can be divided in two parts, 6892 and 1446, that added together give a palindrome (8338).

The spelling of 68921446 in words is "sixty-eight million, nine hundred twenty-one thousand, four hundred forty-six".