29981207 has 2 divisors, whose sum is σ = 29981208. Its totient is φ = 29981206.

The previous prime is 29981153. The next prime is 29981239. The reversal of 29981207 is 70218992.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 29981207 - 2¹⁰ = 29980183 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (29981257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14990603 + 14990604.

It is an arithmetic number, because the mean of its divisors is an integer number (14990604).

Almost surely, 2^29981207 is an apocalyptic number.

29981207 is a deficient number, since it is larger than the sum of its proper divisors (1).

29981207 is an equidigital number, since it uses as much as digits as its factorization.

29981207 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18144, while the sum is 38.

The square root of 29981207 is about 5475.5097479595. The cubic root of 29981207 is about 310.6583545753.

The spelling of 29981207 in words is "twenty-nine million, nine hundred eighty-one thousand, two hundred seven".