71630632 has 16 divisors (see below), whose sum is σ = 137165760. Its totient is φ = 35053104.

The previous prime is 71630623. The next prime is 71630633. The reversal of 71630632 is 23603617.

It is a self number, because there is not a number n which added to its sum of digits gives 71630632.

It is not an unprimeable number, because it can be changed into a prime (71630633) 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, 94878 + ... + 95629.

It is an arithmetic number, because the mean of its divisors is an integer number (8572860).

Almost surely, 2^71630632 is an apocalyptic number.

It is an amenable number.

71630632 is a deficient number, since it is larger than the sum of its proper divisors (65535128).

71630632 is a wasteful number, since it uses less digits than its factorization.

71630632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190560 (or 190556 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 28.

The square root of 71630632 is about 8463.4881697796. The cubic root of 71630632 is about 415.3041405285.

The spelling of 71630632 in words is "seventy-one million, six hundred thirty thousand, six hundred thirty-two".