68920443 has 64 divisors (see below), whose sum is σ = 114048000. Its totient is φ = 40981248.

The previous prime is 68920441. The next prime is 68920447. The reversal of 68920443 is 34402986.

It is a happy number.

It is not a de Polignac number, because 68920443 - 2¹ = 68920441 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 68920398 and 68920407.

It is not an unprimeable number, because it can be changed into a prime (68920441) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 774343 + ... + 774431.

It is an arithmetic number, because the mean of its divisors is an integer number (1782000).

Almost surely, 2^68920443 is an apocalyptic number.

68920443 is a deficient number, since it is larger than the sum of its proper divisors (45127557).

68920443 is a wasteful number, since it uses less digits than its factorization.

68920443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193 (or 187 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 68920443 is about 8301.8337131022. The cubic root of 68920443 is about 409.9988954957.

The spelling of 68920443 in words is "sixty-eight million, nine hundred twenty thousand, four hundred forty-three".