60691689 has 12 divisors (see below), whose sum is σ = 88867636. Its totient is φ = 39906432.

The previous prime is 60691661. The next prime is 60691739. The reversal of 60691689 is 98619606.

It can be written as a sum of positive squares in 2 ways, for example, as 42029289 + 18662400 = 6483^2 + 4320^2 .

It is not a de Polignac number, because 60691689 - 2²⁰ = 59643113 is a prime.

It is a super-2 number, since 2×60691689² = 7366962227345442, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (60691289) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 45532 + ... + 46845.

Almost surely, 2^60691689 is an apocalyptic number.

It is an amenable number.

60691689 is a deficient number, since it is larger than the sum of its proper divisors (28175947).

60691689 is a wasteful number, since it uses less digits than its factorization.

60691689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92456 (or 92453 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 45.

The square root of 60691689 is about 7790.4870836168. The cubic root of 60691689 is about 392.9853926937.

The spelling of 60691689 in words is "sixty million, six hundred ninety-one thousand, six hundred eighty-nine".