71487073 has 8 divisors (see below), whose sum is σ = 82202048. Its totient is φ = 60897744.

The previous prime is 71487061. The next prime is 71487079. The reversal of 71487073 is 37078417.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 71487073 - 2⁵ = 71487041 is a prime.

It is a super-2 number, since 2×71487073² = 10220803212214658, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71487079) 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 in 7 ways as a sum of consecutive naturals, for example, 30186 + ... + 32467.

It is an arithmetic number, because the mean of its divisors is an integer number (10275256).

Almost surely, 2^71487073 is an apocalyptic number.

It is an amenable number.

71487073 is a deficient number, since it is larger than the sum of its proper divisors (10714975).

71487073 is a wasteful number, since it uses less digits than its factorization.

71487073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62823.

The product of its (nonzero) digits is 32928, while the sum is 37.

The square root of 71487073 is about 8455.0028385566. The cubic root of 71487073 is about 415.0265101370.

The spelling of 71487073 in words is "seventy-one million, four hundred eighty-seven thousand, seventy-three".