68999344 has 20 divisors (see below), whose sum is σ = 133815096. Its totient is φ = 34466432.

The previous prime is 68999341. The next prime is 68999353. The reversal of 68999344 is 44399986.

It is a junction number, because it is equal to n+sod(n) for n = 68999291 and 68999300.

It is not an unprimeable number, because it can be changed into a prime (68999341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30972 + ... + 33124.

Almost surely, 2^68999344 is an apocalyptic number.

It is an amenable number.

68999344 is a deficient number, since it is larger than the sum of its proper divisors (64815752).

68999344 is a wasteful number, since it uses less digits than its factorization.

68999344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4164 (or 4158 counting only the distinct ones).

The product of its digits is 1679616, while the sum is 52.

The square root of 68999344 is about 8306.5843762644. The cubic root of 68999344 is about 410.1552931462.

The spelling of 68999344 in words is "sixty-eight million, nine hundred ninety-nine thousand, three hundred forty-four".