71672411 has 2 divisors, whose sum is σ = 71672412. Its totient is φ = 71672410.

The previous prime is 71672401. The next prime is 71672413. The reversal of 71672411 is 11427617.

It is a strong prime.

It is an emirp because it is prime and its reverse (11427617) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 71672411 - 2¹⁰ = 71671387 is a prime.

It is a Sophie Germain prime.

Together with 71672413, 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 (71672413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35836205 + 35836206.

It is an arithmetic number, because the mean of its divisors is an integer number (35836206).

Almost surely, 2^71672411 is an apocalyptic number.

71672411 is a deficient number, since it is larger than the sum of its proper divisors (1).

71672411 is an equidigital number, since it uses as much as digits as its factorization.

71672411 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2352, while the sum is 29.

The square root of 71672411 is about 8465.9560003581. The cubic root of 71672411 is about 415.3848677208.

The spelling of 71672411 in words is "seventy-one million, six hundred seventy-two thousand, four hundred eleven".