58428239 has 4 divisors (see below), whose sum is σ = 59853360. Its totient is φ = 57003120.

The previous prime is 58428229. The next prime is 58428247. The reversal of 58428239 is 93282485.

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

It is not a de Polignac number, because 58428239 - 2²⁴ = 41651023 is a prime.

It is a super-2 number, since 2×58428239² = 6827718225282242, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (41), and also a Moran number because the ratio is a prime number: 1425079 = 58428239 / (5 + 8 + 4 + 2 + 8 + 2 + 3 + 9).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 58428196 and 58428205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (58428229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 712499 + ... + 712580.

It is an arithmetic number, because the mean of its divisors is an integer number (14963340).

Almost surely, 2^58428239 is an apocalyptic number.

58428239 is a deficient number, since it is larger than the sum of its proper divisors (1425121).

58428239 is a wasteful number, since it uses less digits than its factorization.

58428239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1425120.

The product of its digits is 138240, while the sum is 41.

The square root of 58428239 is about 7643.8366675381. The cubic root of 58428239 is about 388.0380073123.

The spelling of 58428239 in words is "fifty-eight million, four hundred twenty-eight thousand, two hundred thirty-nine".