68660787 has 8 divisors (see below), whose sum is σ = 98589904. Its totient is φ = 42252768.

The previous prime is 68660783. The next prime is 68660797. The reversal of 68660787 is 78706686.

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

It is not a de Polignac number, because 68660787 - 2² = 68660783 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68660783) 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, 880228 + ... + 880305.

It is an arithmetic number, because the mean of its divisors is an integer number (12323738).

Almost surely, 2^68660787 is an apocalyptic number.

68660787 is a deficient number, since it is larger than the sum of its proper divisors (29929117).

68660787 is a wasteful number, since it uses less digits than its factorization.

68660787 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1760549.

The product of its (nonzero) digits is 677376, while the sum is 48.

The square root of 68660787 is about 8286.1804831901. The cubic root of 68660787 is about 409.4833607596.

The spelling of 68660787 in words is "sixty-eight million, six hundred sixty thousand, seven hundred eighty-seven".