71894903 has 2 divisors, whose sum is σ = 71894904. Its totient is φ = 71894902.

The previous prime is 71894897. The next prime is 71894929. The reversal of 71894903 is 30949817.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 71894903 - 2²⁴ = 55117687 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71894203) 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, 35947451 + 35947452.

It is an arithmetic number, because the mean of its divisors is an integer number (35947452).

Almost surely, 2^71894903 is an apocalyptic number.

71894903 is a deficient number, since it is larger than the sum of its proper divisors (1).

71894903 is an equidigital number, since it uses as much as digits as its factorization.

71894903 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54432, while the sum is 41.

The square root of 71894903 is about 8479.0862125585. The cubic root of 71894903 is about 415.8142488483.

The spelling of 71894903 in words is "seventy-one million, eight hundred ninety-four thousand, nine hundred three".