71826091 has 2 divisors, whose sum is σ = 71826092. Its totient is φ = 71826090.

The previous prime is 71826067. The next prime is 71826143. The reversal of 71826091 is 19062817.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 71826091 - 2¹³ = 71817899 is a prime.

It is not a weakly prime, because it can be changed into another prime (71826031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35913045 + 35913046.

It is an arithmetic number, because the mean of its divisors is an integer number (35913046).

Almost surely, 2^71826091 is an apocalyptic number.

71826091 is a deficient number, since it is larger than the sum of its proper divisors (1).

71826091 is an equidigital number, since it uses as much as digits as its factorization.

71826091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6048, while the sum is 34.

The square root of 71826091 is about 8475.0274925808. The cubic root of 71826091 is about 415.6815452191.

The spelling of 71826091 in words is "seventy-one million, eight hundred twenty-six thousand, ninety-one".