58911661 has 4 divisors (see below), whose sum is σ = 58928800. Its totient is φ = 58894524.

The previous prime is 58911649. The next prime is 58911667. The reversal of 58911661 is 16611985.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-58911661 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 58911661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (58911667) 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, 1431 + ... + 10948.

It is an arithmetic number, because the mean of its divisors is an integer number (14732200).

Almost surely, 2^58911661 is an apocalyptic number.

It is an amenable number.

58911661 is a deficient number, since it is larger than the sum of its proper divisors (17139).

58911661 is a wasteful number, since it uses less digits than its factorization.

58911661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17138.

The product of its digits is 12960, while the sum is 37.

The square root of 58911661 is about 7675.3932146829. The cubic root of 58911661 is about 389.1052488234.

The spelling of 58911661 in words is "fifty-eight million, nine hundred eleven thousand, six hundred sixty-one".