68660485 has 4 divisors (see below), whose sum is σ = 82392588. Its totient is φ = 54928384.

The previous prime is 68660477. The next prime is 68660491. The reversal of 68660485 is 58406686.

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

It can be written as a sum of positive squares in 2 ways, for example, as 8473921 + 60186564 = 2911^2 + 7758^2 .

It is a cyclic number.

It is not a de Polignac number, because 68660485 - 2³ = 68660477 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6866044 + ... + 6866053.

It is an arithmetic number, because the mean of its divisors is an integer number (20598147).

Almost surely, 2^68660485 is an apocalyptic number.

It is an amenable number.

68660485 is a deficient number, since it is larger than the sum of its proper divisors (13732103).

68660485 is a wasteful number, since it uses less digits than its factorization.

68660485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13732102.

The product of its (nonzero) digits is 276480, while the sum is 43.

The square root of 68660485 is about 8286.1622600574. The cubic root of 68660485 is about 409.4827603968.

The spelling of 68660485 in words is "sixty-eight million, six hundred sixty thousand, four hundred eighty-five".