68707471 has 4 divisors (see below), whose sum is σ = 78522832. Its totient is φ = 58892112.

The previous prime is 68707453. The next prime is 68707511. The reversal of 68707471 is 17470786.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 68707471 - 2⁷ = 68707343 is a prime.

It is a super-3 number, since 3×68707471³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68707871) 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 3 ways as a sum of consecutive naturals, for example, 4907670 + ... + 4907683.

It is an arithmetic number, because the mean of its divisors is an integer number (19630708).

Almost surely, 2^68707471 is an apocalyptic number.

68707471 is a deficient number, since it is larger than the sum of its proper divisors (9815361).

68707471 is an equidigital number, since it uses as much as digits as its factorization.

68707471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9815360.

The product of its (nonzero) digits is 65856, while the sum is 40.

The square root of 68707471 is about 8288.9969839541. The cubic root of 68707471 is about 409.5761453564.

It can be divided in two parts, 6870 and 7471, that added together give a palindrome (14341).

The spelling of 68707471 in words is "sixty-eight million, seven hundred seven thousand, four hundred seventy-one".