71914691 has 2 divisors, whose sum is σ = 71914692. Its totient is φ = 71914690.

The previous prime is 71914681. The next prime is 71914757. The reversal of 71914691 is 19641917.

It is a weak prime.

It is an emirp because it is prime and its reverse (19641917) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 71914691 - 2⁶ = 71914627 is a prime.

It is not a weakly prime, because it can be changed into another prime (71914631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35957345 + 35957346.

It is an arithmetic number, because the mean of its divisors is an integer number (35957346).

Almost surely, 2^71914691 is an apocalyptic number.

71914691 is a deficient number, since it is larger than the sum of its proper divisors (1).

71914691 is an equidigital number, since it uses as much as digits as its factorization.

71914691 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13608, while the sum is 38.

The square root of 71914691 is about 8480.2530033013. The cubic root of 71914691 is about 415.8523942394.

The spelling of 71914691 in words is "seventy-one million, nine hundred fourteen thousand, six hundred ninety-one".