60686690 has 8 divisors (see below), whose sum is σ = 109236060. Its totient is φ = 24274672.

The previous prime is 60686687. The next prime is 60686699. The reversal of 60686690 is 9668606.

It can be written as a sum of positive squares in 2 ways, for example, as 55815841 + 4870849 = 7471^2 + 2207^2 .

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

It is a super-2 number, since 2×60686690² = 7365748686312200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (60686699) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3034325 + ... + 3034344.

Almost surely, 2^60686690 is an apocalyptic number.

60686690 is a deficient number, since it is larger than the sum of its proper divisors (48549370).

60686690 is a wasteful number, since it uses less digits than its factorization.

60686690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6068676.

The product of its (nonzero) digits is 93312, while the sum is 41.

The square root of 60686690 is about 7790.1662369939. The cubic root of 60686690 is about 392.9746027050.

The spelling of 60686690 in words is "sixty million, six hundred eighty-six thousand, six hundred ninety".