68819385 has 16 divisors (see below), whose sum is σ = 111756096. Its totient is φ = 36155328.

The previous prime is 68819351. The next prime is 68819419. The reversal of 68819385 is 58391886.

It is an interprime number because it is at equal distance from previous prime (68819351) and next prime (68819419).

It is not a de Polignac number, because 68819385 - 2⁶ = 68819321 is a prime.

It is a super-3 number, since 3×68819385³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33234 + ... + 35243.

It is an arithmetic number, because the mean of its divisors is an integer number (6984756).

Almost surely, 2^68819385 is an apocalyptic number.

It is an amenable number.

68819385 is a deficient number, since it is larger than the sum of its proper divisors (42936711).

68819385 is a wasteful number, since it uses less digits than its factorization.

68819385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68552.

The product of its digits is 414720, while the sum is 48.

The square root of 68819385 is about 8295.7449936699. The cubic root of 68819385 is about 409.7984037670.

The spelling of 68819385 in words is "sixty-eight million, eight hundred nineteen thousand, three hundred eighty-five".