60665986 has 4 divisors (see below), whose sum is σ = 90998982. Its totient is φ = 30332992.

The previous prime is 60665981. The next prime is 60665987. The reversal of 60665986 is 68956606.

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

It can be written as a sum of positive squares in only one way, i.e., 43151761 + 17514225 = 6569^2 + 4185^2 .

It is not an unprimeable number, because it can be changed into a prime (60665981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15166495 + ... + 15166498.

Almost surely, 2^60665986 is an apocalyptic number.

60665986 is a deficient number, since it is larger than the sum of its proper divisors (30332996).

60665986 is a wasteful number, since it uses less digits than its factorization.

60665986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30332995.

The product of its (nonzero) digits is 466560, while the sum is 46.

The square root of 60665986 is about 7788.8372688098. The cubic root of 60665986 is about 392.9299082720.

The spelling of 60665986 in words is "sixty million, six hundred sixty-five thousand, nine hundred eighty-six".