58686665 has 4 divisors (see below), whose sum is σ = 70424004. Its totient is φ = 46949328.

The previous prime is 58686659. The next prime is 58686673. The reversal of 58686665 is 56668685.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 56668685 = 5 ⋅11333737.

It can be written as a sum of positive squares in 2 ways, for example, as 13097161 + 45589504 = 3619^2 + 6752^2 .

It is a cyclic number.

It is not a de Polignac number, because 58686665 - 2¹⁸ = 58424521 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5868662 + ... + 5868671.

It is an arithmetic number, because the mean of its divisors is an integer number (17606001).

Almost surely, 2^58686665 is an apocalyptic number.

It is an amenable number.

58686665 is a deficient number, since it is larger than the sum of its proper divisors (11737339).

58686665 is a wasteful number, since it uses less digits than its factorization.

58686665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11737338.

The product of its digits is 2073600, while the sum is 50.

The square root of 58686665 is about 7660.7222244381. The cubic root of 58686665 is about 388.6092586477.

The spelling of 58686665 in words is "fifty-eight million, six hundred eighty-six thousand, six hundred sixty-five".