28412829 has 8 divisors (see below), whose sum is σ = 42093120. Its totient is φ = 18941868.

The previous prime is 28412827. The next prime is 28412861. The reversal of 28412829 is 92821482.

It is not a de Polignac number, because 28412829 - 2¹ = 28412827 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28412793 and 28412802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28412827) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 526137 + ... + 526190.

It is an arithmetic number, because the mean of its divisors is an integer number (5261640).

Almost surely, 2^28412829 is an apocalyptic number.

It is an amenable number.

28412829 is a deficient number, since it is larger than the sum of its proper divisors (13680291).

28412829 is a wasteful number, since it uses less digits than its factorization.

28412829 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1052336 (or 1052330 counting only the distinct ones).

The product of its digits is 18432, while the sum is 36.

The square root of 28412829 is about 5330.3685613661. The cubic root of 28412829 is about 305.1439936406.

It can be divided in two parts, 28412 and 829, that added together give a square (29241 = 171²).

The spelling of 28412829 in words is "twenty-eight million, four hundred twelve thousand, eight hundred twenty-nine".