71464391 has 2 divisors, whose sum is σ = 71464392. Its totient is φ = 71464390.

The previous prime is 71464363. The next prime is 71464403. The reversal of 71464391 is 19346417.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 71464391 - 2¹⁰ = 71463367 is a prime.

It is a Sophie Germain prime.

It is equal to p_4199138 and since 71464391 and 4199138 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71464321) 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, 35732195 + 35732196.

It is an arithmetic number, because the mean of its divisors is an integer number (35732196).

Almost surely, 2^71464391 is an apocalyptic number.

71464391 is a deficient number, since it is larger than the sum of its proper divisors (1).

71464391 is an equidigital number, since it uses as much as digits as its factorization.

71464391 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18144, while the sum is 35.

The square root of 71464391 is about 8453.6613961052. The cubic root of 71464391 is about 414.9826111648.

The spelling of 71464391 in words is "seventy-one million, four hundred sixty-four thousand, three hundred ninety-one".