71436073 has 4 divisors (see below), whose sum is σ = 71453008. Its totient is φ = 71419140.

The previous prime is 71436049. The next prime is 71436083. The reversal of 71436073 is 37063417.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 71436073 - 2⁹ = 71435561 is a prime.

It is a super-2 number, since 2×71436073² = 10206225051322658, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71436083) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3478 + ... + 12448.

It is an arithmetic number, because the mean of its divisors is an integer number (17863252).

Almost surely, 2^71436073 is an apocalyptic number.

It is an amenable number.

71436073 is a deficient number, since it is larger than the sum of its proper divisors (16935).

71436073 is an equidigital number, since it uses as much as digits as its factorization.

71436073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16934.

The product of its (nonzero) digits is 10584, while the sum is 31.

The square root of 71436073 is about 8451.9863345843. The cubic root of 71436073 is about 414.9277911817.

The spelling of 71436073 in words is "seventy-one million, four hundred thirty-six thousand, seventy-three".