71248623 has 8 divisors (see below), whose sum is σ = 95529600. Its totient is φ = 47233368.

The previous prime is 71248607. The next prime is 71248637. The reversal of 71248623 is 32684217.

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

It is not a de Polignac number, because 71248623 - 2⁴ = 71248607 is a prime.

It is a super-2 number, since 2×71248623² = 10152732558792258, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71248123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65803 + ... + 66876.

It is an arithmetic number, because the mean of its divisors is an integer number (11941200).

Almost surely, 2^71248623 is an apocalyptic number.

71248623 is a deficient number, since it is larger than the sum of its proper divisors (24280977).

71248623 is a wasteful number, since it uses less digits than its factorization.

71248623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132861.

The product of its digits is 16128, while the sum is 33.

The square root of 71248623 is about 8440.8899412325. The cubic root of 71248623 is about 414.5645463896.

The spelling of 71248623 in words is "seventy-one million, two hundred forty-eight thousand, six hundred twenty-three".