68626399 has 8 divisors (see below), whose sum is σ = 73687968. Its totient is φ = 63678720.

The previous prime is 68626373. The next prime is 68626429. The reversal of 68626399 is 99362686.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 68626399 - 2¹⁵ = 68593631 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68626339) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27222 + ... + 29635.

It is an arithmetic number, because the mean of its divisors is an integer number (9210996).

Almost surely, 2^68626399 is an apocalyptic number.

68626399 is a deficient number, since it is larger than the sum of its proper divisors (5061569).

68626399 is a wasteful number, since it uses less digits than its factorization.

68626399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56945.

The product of its digits is 839808, while the sum is 49.

The square root of 68626399 is about 8284.1052021326. The cubic root of 68626399 is about 409.4149875979.

The spelling of 68626399 in words is "sixty-eight million, six hundred twenty-six thousand, three hundred ninety-nine".