71623116 has 30 divisors (see below), whose sum is σ = 187237820. Its totient is φ = 23874264.

The previous prime is 71623061. The next prime is 71623117. The reversal of 71623116 is 61132617.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 71623116.

It is not an unprimeable number, because it can be changed into a prime (71623117) 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 9 ways as a sum of consecutive naturals, for example, 110206 + ... + 110853.

Almost surely, 2^71623116 is an apocalyptic number.

It is an amenable number.

71623116 is an abundant number, since it is smaller than the sum of its proper divisors (115614704).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

71623116 is a wasteful number, since it uses less digits than its factorization.

71623116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221075 (or 221064 counting only the distinct ones).

The product of its digits is 1512, while the sum is 27.

The square root of 71623116 is about 8463.0441331710. The cubic root of 71623116 is about 415.2896144567.

It can be divided in two parts, 716 and 23116, that added together give a palindrome (23832).

The spelling of 71623116 in words is "seventy-one million, six hundred twenty-three thousand, one hundred sixteen".