60686779 has 4 divisors (see below), whose sum is σ = 63880840. Its totient is φ = 57492720.

The previous prime is 60686761. The next prime is 60686783. The reversal of 60686779 is 97768606.

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 60686779 - 2¹¹ = 60684731 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (60681779) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1597002 + ... + 1597039.

It is an arithmetic number, because the mean of its divisors is an integer number (15970210).

Almost surely, 2^60686779 is an apocalyptic number.

60686779 is a deficient number, since it is larger than the sum of its proper divisors (3194061).

60686779 is a wasteful number, since it uses less digits than its factorization.

60686779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3194060.

The product of its (nonzero) digits is 762048, while the sum is 49.

The square root of 60686779 is about 7790.1719493218. The cubic root of 60686779 is about 392.9747948104.

The spelling of 60686779 in words is "sixty million, six hundred eighty-six thousand, seven hundred seventy-nine".