28958413 has 16 divisors (see below), whose sum is σ = 33546240. Its totient is φ = 24721200.

The previous prime is 28958407. The next prime is 28958431. The reversal of 28958413 is 31485982.

It is a cyclic number.

It is not a de Polignac number, because 28958413 - 2¹³ = 28950221 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 (28958473) 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 15 ways as a sum of consecutive naturals, for example, 25998 + ... + 27088.

It is an arithmetic number, because the mean of its divisors is an integer number (2096640).

Almost surely, 2^28958413 is an apocalyptic number.

It is an amenable number.

28958413 is a deficient number, since it is larger than the sum of its proper divisors (4587827).

28958413 is a wasteful number, since it uses less digits than its factorization.

28958413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1248.

The product of its digits is 69120, while the sum is 40.

The square root of 28958413 is about 5381.3021658331. The cubic root of 28958413 is about 307.0847520360.

It can be divided in two parts, 28 and 958413, that added together give a square (958441 = 979²).

The spelling of 28958413 in words is "twenty-eight million, nine hundred fifty-eight thousand, four hundred thirteen".