58999991 has 8 divisors (see below), whose sum is σ = 61643904. Its totient is φ = 56362680.

The previous prime is 58999973. The next prime is 59000003. The reversal of 58999991 is 19999985.

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

It is a cyclic number.

It is not a de Polignac number, because 58999991 - 2²² = 54805687 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 58999991.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (58999961) 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, 28700 + ... + 30686.

It is an arithmetic number, because the mean of its divisors is an integer number (7705488).

Almost surely, 2^58999991 is an apocalyptic number.

58999991 is a deficient number, since it is larger than the sum of its proper divisors (2643913).

58999991 is a wasteful number, since it uses less digits than its factorization.

58999991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3301.

The product of its digits is 2361960, while the sum is 59.

The square root of 58999991 is about 7681.1451620185. The cubic root of 58999991 is about 389.2996217924.

The spelling of 58999991 in words is "fifty-eight million, nine hundred ninety-nine thousand, nine hundred ninety-one".