71632623 has 4 divisors (see below), whose sum is σ = 95510168. Its totient is φ = 47755080.

The previous prime is 71632609. The next prime is 71632651. The reversal of 71632623 is 32623617.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 71632623 - 2⁴ = 71632607 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71632123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11938768 + ... + 11938773.

It is an arithmetic number, because the mean of its divisors is an integer number (23877542).

Almost surely, 2^71632623 is an apocalyptic number.

71632623 is a deficient number, since it is larger than the sum of its proper divisors (23877545).

71632623 is a wasteful number, since it uses less digits than its factorization.

71632623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23877544.

The product of its digits is 9072, while the sum is 30.

The square root of 71632623 is about 8463.6057918596. The cubic root of 71632623 is about 415.3079883371.

The spelling of 71632623 in words is "seventy-one million, six hundred thirty-two thousand, six hundred twenty-three".