67236971 has 2 divisors, whose sum is σ = 67236972. Its totient is φ = 67236970.

The previous prime is 67236947. The next prime is 67236973. The reversal of 67236971 is 17963276.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 67236971 - 2¹⁰ = 67235947 is a prime.

Together with 67236973, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (67236973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33618485 + 33618486.

It is an arithmetic number, because the mean of its divisors is an integer number (33618486).

Almost surely, 2^67236971 is an apocalyptic number.

67236971 is a deficient number, since it is larger than the sum of its proper divisors (1).

67236971 is an equidigital number, since it uses as much as digits as its factorization.

67236971 is an evil number, because the sum of its binary digits is even.

The product of its digits is 95256, while the sum is 41.

The square root of 67236971 is about 8199.8153027980. The cubic root of 67236971 is about 406.6330869732.

The spelling of 67236971 in words is "sixty-seven million, two hundred thirty-six thousand, nine hundred seventy-one".