29428669 has 4 divisors (see below), whose sum is σ = 29927520. Its totient is φ = 28929820.

The previous prime is 29428667. The next prime is 29428691. The reversal of 29428669 is 96682492.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 29428669 - 2¹ = 29428667 is a prime.

It is a super-2 number, since 2×29428669² = 1732093118223122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29428667) 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 3 ways as a sum of consecutive naturals, for example, 249337 + ... + 249454.

It is an arithmetic number, because the mean of its divisors is an integer number (7481880).

Almost surely, 2^29428669 is an apocalyptic number.

It is an amenable number.

29428669 is a deficient number, since it is larger than the sum of its proper divisors (498851).

29428669 is an equidigital number, since it uses as much as digits as its factorization.

29428669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 498850.

The product of its digits is 373248, while the sum is 46.

The square root of 29428669 is about 5424.8197205068. The cubic root of 29428669 is about 308.7380855057.

It can be divided in two parts, 2942 and 8669, that added together give a palindrome (11611).

The spelling of 29428669 in words is "twenty-nine million, four hundred twenty-eight thousand, six hundred sixty-nine".