29913971 has 2 divisors, whose sum is σ = 29913972. Its totient is φ = 29913970.

The previous prime is 29913953. The next prime is 29913991. The reversal of 29913971 is 17931992.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 29913971 - 2⁶ = 29913907 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (29913901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14956985 + 14956986.

It is an arithmetic number, because the mean of its divisors is an integer number (14956986).

Almost surely, 2^29913971 is an apocalyptic number.

29913971 is a deficient number, since it is larger than the sum of its proper divisors (1).

29913971 is an equidigital number, since it uses as much as digits as its factorization.

29913971 is an evil number, because the sum of its binary digits is even.

The product of its digits is 30618, while the sum is 41.

The square root of 29913971 is about 5469.3665995250. The cubic root of 29913971 is about 310.4259527834.

The spelling of 29913971 in words is "twenty-nine million, nine hundred thirteen thousand, nine hundred seventy-one".