29701421 has 2 divisors, whose sum is σ = 29701422. Its totient is φ = 29701420.

The previous prime is 29701409. The next prime is 29701429. The reversal of 29701421 is 12410792.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29278921 + 422500 = 5411^2 + 650^2 .

It is a cyclic number.

It is not a de Polignac number, because 29701421 - 2¹⁰ = 29700397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (29701429) 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 as a sum of consecutive naturals, namely, 14850710 + 14850711.

It is an arithmetic number, because the mean of its divisors is an integer number (14850711).

Almost surely, 2^29701421 is an apocalyptic number.

It is an amenable number.

29701421 is a deficient number, since it is larger than the sum of its proper divisors (1).

29701421 is an equidigital number, since it uses as much as digits as its factorization.

29701421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 29701421 is about 5449.9010082753. The cubic root of 29701421 is about 309.6889735145.

The spelling of 29701421 in words is "twenty-nine million, seven hundred one thousand, four hundred twenty-one".