58239661 has 4 divisors (see below), whose sum is σ = 58269052. Its totient is φ = 58210272.

The previous prime is 58239653. The next prime is 58239677. The reversal of 58239661 is 16693285.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 13764100 + 44475561 = 3710^2 + 6669^2 .

It is a cyclic number.

It is not a de Polignac number, because 58239661 - 2³ = 58239653 is a prime.

It is a super-2 number, since 2×58239661² = 6783716226789842, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (58239631) 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, 11490 + ... + 15763.

It is an arithmetic number, because the mean of its divisors is an integer number (14567263).

Almost surely, 2^58239661 is an apocalyptic number.

It is an amenable number.

58239661 is a deficient number, since it is larger than the sum of its proper divisors (29391).

58239661 is a wasteful number, since it uses less digits than its factorization.

58239661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29390.

The product of its digits is 77760, while the sum is 40.

The square root of 58239661 is about 7631.4914007683. The cubic root of 58239661 is about 387.6200912556.

The spelling of 58239661 in words is "fifty-eight million, two hundred thirty-nine thousand, six hundred sixty-one".