68775471 has 12 divisors (see below), whose sum is σ = 99864960. Its totient is φ = 45609120.

The previous prime is 68775463. The next prime is 68775479. The reversal of 68775471 is 17457786.

It is an interprime number because it is at equal distance from previous prime (68775463) and next prime (68775479).

It is not a de Polignac number, because 68775471 - 2³ = 68775463 is a prime.

It is a super-3 number, since 3×68775471³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68775479) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18286 + ... + 21723.

It is an arithmetic number, because the mean of its divisors is an integer number (8322080).

Almost surely, 2^68775471 is an apocalyptic number.

68775471 is a deficient number, since it is larger than the sum of its proper divisors (31089489).

68775471 is a wasteful number, since it uses less digits than its factorization.

68775471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40206 (or 40203 counting only the distinct ones).

The product of its digits is 329280, while the sum is 45.

The square root of 68775471 is about 8293.0977927431. The cubic root of 68775471 is about 409.7112204043.

The spelling of 68775471 in words is "sixty-eight million, seven hundred seventy-five thousand, four hundred seventy-one".