29013421 has 4 divisors (see below), whose sum is σ = 29058912. Its totient is φ = 28967932.

The previous prime is 29013409. The next prime is 29013431. The reversal of 29013421 is 12431092.

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 29013421 - 2¹¹ = 29011373 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 12.

It is a junction number, because it is equal to n+sod(n) for n = 29013392 and 29013401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29013431) 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, 21775 + ... + 23068.

It is an arithmetic number, because the mean of its divisors is an integer number (7264728).

Almost surely, 2^29013421 is an apocalyptic number.

It is an amenable number.

29013421 is a deficient number, since it is larger than the sum of its proper divisors (45491).

29013421 is an equidigital number, since it uses as much as digits as its factorization.

29013421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45490.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 29013421 is about 5386.4107715621. The cubic root of 29013421 is about 307.2790701604.

The spelling of 29013421 in words is "twenty-nine million, thirteen thousand, four hundred twenty-one".