68844455 has 4 divisors (see below), whose sum is σ = 82613352. Its totient is φ = 55075560.

The previous prime is 68844449. The next prime is 68844469. The reversal of 68844455 is 55444886.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 68844455 - 2⁴ = 68844439 is a prime.

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 3 ways as a sum of consecutive naturals, for example, 6884441 + ... + 6884450.

It is an arithmetic number, because the mean of its divisors is an integer number (20653338).

Almost surely, 2^68844455 is an apocalyptic number.

68844455 is a deficient number, since it is larger than the sum of its proper divisors (13768897).

68844455 is a wasteful number, since it uses less digits than its factorization.

68844455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13768896.

The product of its digits is 614400, while the sum is 44.

The square root of 68844455 is about 8297.2558716723. The cubic root of 68844455 is about 409.8481591217.

The spelling of 68844455 in words is "sixty-eight million, eight hundred forty-four thousand, four hundred fifty-five".