68945379 has 8 divisors (see below), whose sum is σ = 92651520. Its totient is φ = 45601416.

The previous prime is 68945377. The next prime is 68945411. The reversal of 68945379 is 97354986.

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

It is not a de Polignac number, because 68945379 - 2¹ = 68945377 is a prime.

It is a super-3 number, since 3×68945379³ (a number of 24 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (68945377) 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 7 ways as a sum of consecutive naturals, for example, 90099 + ... + 90860.

It is an arithmetic number, because the mean of its divisors is an integer number (11581440).

Almost surely, 2^68945379 is an apocalyptic number.

68945379 is a deficient number, since it is larger than the sum of its proper divisors (23706141).

68945379 is a wasteful number, since it uses less digits than its factorization.

68945379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181089.

The product of its digits is 1632960, while the sum is 51.

The square root of 68945379 is about 8303.3354141574. The cubic root of 68945379 is about 410.0483365578.

The spelling of 68945379 in words is "sixty-eight million, nine hundred forty-five thousand, three hundred seventy-nine".