58381909 has 4 divisors (see below), whose sum is σ = 59805900. Its totient is φ = 56957920.

The previous prime is 58381871. The next prime is 58381913. The reversal of 58381909 is 90918385.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 90918385 = 5 ⋅18183677.

It can be written as a sum of positive squares in 2 ways, for example, as 10909809 + 47472100 = 3303^2 + 6890^2 .

It is a cyclic number.

It is not a de Polignac number, because 58381909 - 2¹³ = 58373717 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 (58381949) 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, 711934 + ... + 712015.

It is an arithmetic number, because the mean of its divisors is an integer number (14951475).

Almost surely, 2^58381909 is an apocalyptic number.

It is an amenable number.

58381909 is a deficient number, since it is larger than the sum of its proper divisors (1423991).

58381909 is a wasteful number, since it uses less digits than its factorization.

58381909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1423990.

The product of its (nonzero) digits is 77760, while the sum is 43.

The square root of 58381909 is about 7640.8055203624. The cubic root of 58381909 is about 387.9354167668.

The spelling of 58381909 in words is "fifty-eight million, three hundred eighty-one thousand, nine hundred nine".