60689681 has 8 divisors (see below), whose sum is σ = 65474304. Its totient is φ = 55921680.

The previous prime is 60689669. The next prime is 60689729. The reversal of 60689681 is 18698606.

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

It is a cyclic number.

It is not a de Polignac number, because 60689681 - 2²² = 56495377 is a prime.

It is a super-2 number, since 2×60689681² = 7366474759763522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (60689621) 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, 4046 + ... + 11736.

It is an arithmetic number, because the mean of its divisors is an integer number (8184288).

Almost surely, 2^60689681 is an apocalyptic number.

It is an amenable number.

60689681 is a deficient number, since it is larger than the sum of its proper divisors (4784623).

60689681 is a wasteful number, since it uses less digits than its factorization.

60689681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8311.

The product of its (nonzero) digits is 124416, while the sum is 44.

The square root of 60689681 is about 7790.3582074254. The cubic root of 60689681 is about 392.9810586386.

The spelling of 60689681 in words is "sixty million, six hundred eighty-nine thousand, six hundred eighty-one".