29429427 has 4 divisors (see below), whose sum is σ = 39239240. Its totient is φ = 19619616.

The previous prime is 29429401. The next prime is 29429479. The reversal of 29429427 is 72492492.

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

It is not a de Polignac number, because 29429427 - 2⁷ = 29429299 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29429027) 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, 4904902 + ... + 4904907.

It is an arithmetic number, because the mean of its divisors is an integer number (9809810).

Almost surely, 2^29429427 is an apocalyptic number.

29429427 is a deficient number, since it is larger than the sum of its proper divisors (9809813).

29429427 is an equidigital number, since it uses as much as digits as its factorization.

29429427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9809812.

The product of its digits is 72576, while the sum is 39.

The square root of 29429427 is about 5424.8895841298. The cubic root of 29429427 is about 308.7407362254.

The spelling of 29429427 in words is "twenty-nine million, four hundred twenty-nine thousand, four hundred twenty-seven".