71632743 has 16 divisors (see below), whose sum is σ = 117551616. Its totient is φ = 37784160.

The previous prime is 71632721. The next prime is 71632751. The reversal of 71632743 is 34723617.

It is not a de Polignac number, because 71632743 - 2⁸ = 71632487 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71632763) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 130923 + ... + 131468.

It is an arithmetic number, because the mean of its divisors is an integer number (7346976).

Almost surely, 2^71632743 is an apocalyptic number.

71632743 is a deficient number, since it is larger than the sum of its proper divisors (45918873).

71632743 is a wasteful number, since it uses less digits than its factorization.

71632743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262414.

The product of its digits is 21168, while the sum is 33.

The square root of 71632743 is about 8463.6128810337. The cubic root of 71632743 is about 415.3082202469.

The spelling of 71632743 in words is "seventy-one million, six hundred thirty-two thousand, seven hundred forty-three".