60686669 has 4 divisors (see below), whose sum is σ = 60912540. Its totient is φ = 60460800.

The previous prime is 60686663. The next prime is 60686671. The reversal of 60686669 is 96668606.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1857769 + 58828900 = 1363^2 + 7670^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-60686669 is a prime.

It is a super-2 number, since 2×60686669² = 7365743588631122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (60686663) 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, 112532 + ... + 113069.

It is an arithmetic number, because the mean of its divisors is an integer number (15228135).

Almost surely, 2^60686669 is an apocalyptic number.

It is an amenable number.

60686669 is a deficient number, since it is larger than the sum of its proper divisors (225871).

60686669 is a wasteful number, since it uses less digits than its factorization.

60686669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225870.

The product of its (nonzero) digits is 559872, while the sum is 47.

The square root of 60686669 is about 7790.1648891407. The cubic root of 60686669 is about 392.9745573767.

The spelling of 60686669 in words is "sixty million, six hundred eighty-six thousand, six hundred sixty-nine".