68907399 has 8 divisors (see below), whose sum is σ = 100228992. Its totient is φ = 41762040.

The previous prime is 68907383. The next prime is 68907403. The reversal of 68907399 is 99370986.

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

It is not a de Polignac number, because 68907399 - 2⁴ = 68907383 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68907329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1044019 + ... + 1044084.

It is an arithmetic number, because the mean of its divisors is an integer number (12528624).

Almost surely, 2^68907399 is an apocalyptic number.

68907399 is a deficient number, since it is larger than the sum of its proper divisors (31321593).

68907399 is a wasteful number, since it uses less digits than its factorization.

68907399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2088117.

The product of its (nonzero) digits is 734832, while the sum is 51.

The square root of 68907399 is about 8301.0480663588. The cubic root of 68907399 is about 409.9730281682.

The spelling of 68907399 in words is "sixty-eight million, nine hundred seven thousand, three hundred ninety-nine".