68379591 has 8 divisors (see below), whose sum is σ = 104197504. Its totient is φ = 39074040.

The previous prime is 68379551. The next prime is 68379599. The reversal of 68379591 is 19597386.

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

It is not a de Polignac number, because 68379591 - 2¹⁷ = 68248519 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 68379591.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68379599) 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, 1628065 + ... + 1628106.

It is an arithmetic number, because the mean of its divisors is an integer number (13024688).

Almost surely, 2^68379591 is an apocalyptic number.

68379591 is a deficient number, since it is larger than the sum of its proper divisors (35817913).

68379591 is a wasteful number, since it uses less digits than its factorization.

68379591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3256181.

The product of its digits is 408240, while the sum is 48.

The square root of 68379591 is about 8269.1953054696. The cubic root of 68379591 is about 408.9235913161.

The spelling of 68379591 in words is "sixty-eight million, three hundred seventy-nine thousand, five hundred ninety-one".