71632742 has 8 divisors (see below), whose sum is σ = 107641656. Its totient is φ = 35752192.

The previous prime is 71632721. The next prime is 71632751. The reversal of 71632742 is 24723617.

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

It is a junction number, because it is equal to n+sod(n) for n = 71632699 and 71632708.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 30683 + ... + 32934.

It is an arithmetic number, because the mean of its divisors is an integer number (13455207).

Almost surely, 2^71632742 is an apocalyptic number.

71632742 is a deficient number, since it is larger than the sum of its proper divisors (36008914).

71632742 is a wasteful number, since it uses less digits than its factorization.

71632742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64182.

The product of its digits is 14112, while the sum is 32.

The square root of 71632742 is about 8463.6128219573. The cubic root of 71632742 is about 415.3082183143.

The spelling of 71632742 in words is "seventy-one million, six hundred thirty-two thousand, seven hundred forty-two".