29427961 has 4 divisors (see below), whose sum is σ = 29926800. Its totient is φ = 28929124.

The previous prime is 29427907. The next prime is 29427973. The reversal of 29427961 is 16972492.

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 29427961 - 2⁹ = 29427449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29427991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 249331 + ... + 249448.

It is an arithmetic number, because the mean of its divisors is an integer number (7481700).

Almost surely, 2^29427961 is an apocalyptic number.

It is an amenable number.

29427961 is a deficient number, since it is larger than the sum of its proper divisors (498839).

29427961 is an equidigital number, since it uses as much as digits as its factorization.

29427961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 498838.

The product of its digits is 54432, while the sum is 40.

The square root of 29427961 is about 5424.7544644896. The cubic root of 29427961 is about 308.7356095944.

The spelling of 29427961 in words is "twenty-nine million, four hundred twenty-seven thousand, nine hundred sixty-one".