68899426 has 4 divisors (see below), whose sum is σ = 103349142. Its totient is φ = 34449712.

The previous prime is 68899409. The next prime is 68899429. The reversal of 68899426 is 62499886.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 62499886 = 2 ⋅31249943.

It can be written as a sum of positive squares in only one way, i.e., 68475625 + 423801 = 8275^2 + 651^2 .

It is not an unprimeable number, because it can be changed into a prime (68899429) 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 as a sum of consecutive naturals, namely, 17224855 + ... + 17224858.

Almost surely, 2^68899426 is an apocalyptic number.

68899426 is a deficient number, since it is larger than the sum of its proper divisors (34449716).

68899426 is a wasteful number, since it uses less digits than its factorization.

68899426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34449715.

The product of its digits is 1492992, while the sum is 52.

The square root of 68899426 is about 8300.5678119030. The cubic root of 68899426 is about 409.9572154443.

The spelling of 68899426 in words is "sixty-eight million, eight hundred ninety-nine thousand, four hundred twenty-six".