71703491 has 2 divisors, whose sum is σ = 71703492. Its totient is φ = 71703490.

The previous prime is 71703461. The next prime is 71703493. The reversal of 71703491 is 19430717.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 71703491 - 2¹⁰ = 71702467 is a prime.

Together with 71703493, 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 (71703493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35851745 + 35851746.

It is an arithmetic number, because the mean of its divisors is an integer number (35851746).

Almost surely, 2^71703491 is an apocalyptic number.

71703491 is a deficient number, since it is larger than the sum of its proper divisors (1).

71703491 is an equidigital number, since it uses as much as digits as its factorization.

71703491 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5292, while the sum is 32.

The square root of 71703491 is about 8467.7913885499. The cubic root of 71703491 is about 415.4449014950. Note that the first 3 decimals are identical.

The spelling of 71703491 in words is "seventy-one million, seven hundred three thousand, four hundred ninety-one".