68844387 has 4 divisors (see below), whose sum is σ = 91792520. Its totient is φ = 45896256.

The previous prime is 68844379. The next prime is 68844401. The reversal of 68844387 is 78344886.

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

It is not a de Polignac number, because 68844387 - 2³ = 68844379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68844317) 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, 11474062 + ... + 11474067.

It is an arithmetic number, because the mean of its divisors is an integer number (22948130).

Almost surely, 2^68844387 is an apocalyptic number.

68844387 is a deficient number, since it is larger than the sum of its proper divisors (22948133).

68844387 is a wasteful number, since it uses less digits than its factorization.

68844387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22948132.

The product of its digits is 1032192, while the sum is 48.

The square root of 68844387 is about 8297.2517739309. The cubic root of 68844387 is about 409.8480241813.

The spelling of 68844387 in words is "sixty-eight million, eight hundred forty-four thousand, three hundred eighty-seven".