58687991 has 8 divisors (see below), whose sum is σ = 61991424. Its totient is φ = 55472760.

The previous prime is 58687931. The next prime is 58688023. The reversal of 58687991 is 19978685.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-58687991 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (58687921) 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, 20681 + ... + 23346.

It is an arithmetic number, because the mean of its divisors is an integer number (7748928).

Almost surely, 2^58687991 is an apocalyptic number.

58687991 is a deficient number, since it is larger than the sum of its proper divisors (3303433).

58687991 is a wasteful number, since it uses less digits than its factorization.

58687991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44101.

The product of its digits is 1088640, while the sum is 53.

The square root of 58687991 is about 7660.8087693141. The cubic root of 58687991 is about 388.6121854455.

The spelling of 58687991 in words is "fifty-eight million, six hundred eighty-seven thousand, nine hundred ninety-one".