28629471 has 16 divisors (see below), whose sum is σ = 41217120. Its totient is φ = 17571840.

The previous prime is 28629451. The next prime is 28629481. The reversal of 28629471 is 17492682.

It is not a de Polignac number, because 28629471 - 2⁶ = 28629407 is a prime.

It is a super-3 number, since 3×28629471³ (a number of 23 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28629451) 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, 19615 + ... + 21023.

It is an arithmetic number, because the mean of its divisors is an integer number (2576070).

Almost surely, 2^28629471 is an apocalyptic number.

28629471 is a deficient number, since it is larger than the sum of its proper divisors (12587649).

28629471 is a wasteful number, since it uses less digits than its factorization.

28629471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1946.

The product of its digits is 48384, while the sum is 39.

The square root of 28629471 is about 5350.6514556641. The cubic root of 28629471 is about 305.9175842809.

The spelling of 28629471 in words is "twenty-eight million, six hundred twenty-nine thousand, four hundred seventy-one".