58861987 has 4 divisors (see below), whose sum is σ = 58889376. Its totient is φ = 58834600.

The previous prime is 58861961. The next prime is 58861997. The reversal of 58861987 is 78916885.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 78916885 = 5 ⋅15783377.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-58861987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (58861997) 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, 10168 + ... + 14869.

It is an arithmetic number, because the mean of its divisors is an integer number (14722344).

Almost surely, 2^58861987 is an apocalyptic number.

58861987 is a deficient number, since it is larger than the sum of its proper divisors (27389).

58861987 is a wasteful number, since it uses less digits than its factorization.

58861987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27388.

The product of its digits is 967680, while the sum is 52.

The square root of 58861987 is about 7672.1566068479. The cubic root of 58861987 is about 388.9958542435.

The spelling of 58861987 in words is "fifty-eight million, eight hundred sixty-one thousand, nine hundred eighty-seven".