68713730 has 16 divisors (see below), whose sum is σ = 123971904. Its totient is φ = 27421680.

The previous prime is 68713727. The next prime is 68713739. The reversal of 68713730 is 3731786.

It is not an unprimeable number, because it can be changed into a prime (68713739) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3326 + ... + 12185.

It is an arithmetic number, because the mean of its divisors is an integer number (7748244).

Almost surely, 2^68713730 is an apocalyptic number.

68713730 is a deficient number, since it is larger than the sum of its proper divisors (55258174).

68713730 is a wasteful number, since it uses less digits than its factorization.

68713730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15961.

The product of its (nonzero) digits is 21168, while the sum is 35.

The square root of 68713730 is about 8289.3745240519. The cubic root of 68713730 is about 409.5885819431.

It can be divided in two parts, 6871 and 3730, that added together give a palindrome (10601).

The spelling of 68713730 in words is "sixty-eight million, seven hundred thirteen thousand, seven hundred thirty".