29429789 has 4 divisors (see below), whose sum is σ = 29446524. Its totient is φ = 29413056.

The previous prime is 29429767. The next prime is 29429797. The reversal of 29429789 is 98792492.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 11222500 + 18207289 = 3350^2 + 4267^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-29429789 is a prime.

It is a super-2 number, since 2×29429789² = 1732224961169042, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29429189) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5372 + ... + 9365.

It is an arithmetic number, because the mean of its divisors is an integer number (7361631).

Almost surely, 2^29429789 is an apocalyptic number.

It is an amenable number.

29429789 is a deficient number, since it is larger than the sum of its proper divisors (16735).

29429789 is a wasteful number, since it uses less digits than its factorization.

29429789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16734.

The product of its digits is 653184, while the sum is 50.

The square root of 29429789 is about 5424.9229487616. The cubic root of 29429789 is about 308.7420021203.

The spelling of 29429789 in words is "twenty-nine million, four hundred twenty-nine thousand, seven hundred eighty-nine".