68997842 has 4 divisors (see below), whose sum is σ = 103496766. Its totient is φ = 34498920.

The previous prime is 68997839. The next prime is 68997899. The reversal of 68997842 is 24879986.

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

It can be written as a sum of positive squares in only one way, i.e., 52113961 + 16883881 = 7219^2 + 4109^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17249459 + ... + 17249462.

Almost surely, 2^68997842 is an apocalyptic number.

68997842 is a deficient number, since it is larger than the sum of its proper divisors (34498924).

68997842 is a wasteful number, since it uses less digits than its factorization.

68997842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34498923.

The product of its digits is 1741824, while the sum is 53.

The square root of 68997842 is about 8306.4939655669. The cubic root of 68997842 is about 410.1523169936.

It can be divided in two parts, 6899 and 7842, that added together give a palindrome (14741).

The spelling of 68997842 in words is "sixty-eight million, nine hundred ninety-seven thousand, eight hundred forty-two".