28429507 has 8 divisors (see below), whose sum is σ = 29004992. Its totient is φ = 27858600.

The previous prime is 28429487. The next prime is 28429543. The reversal of 28429507 is 70592482.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 28429507 - 2¹¹ = 28427459 is a prime.

It is a super-3 number, since 3×28429507³ (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28429547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13132 + ... + 15142.

It is an arithmetic number, because the mean of its divisors is an integer number (3625624).

Almost surely, 2^28429507 is an apocalyptic number.

28429507 is a deficient number, since it is larger than the sum of its proper divisors (575485).

28429507 is a wasteful number, since it uses less digits than its factorization.

28429507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2289.

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 28429507 is about 5331.9327640172. The cubic root of 28429507 is about 305.2036872868.

It can be divided in two parts, 284 and 29507, that added together give a cube (29791 = 31³).

The spelling of 28429507 in words is "twenty-eight million, four hundred twenty-nine thousand, five hundred seven".