71630733 has 8 divisors (see below), whose sum is σ = 97728928. Its totient is φ = 46643184.

The previous prime is 71630723. The next prime is 71630737. The reversal of 71630733 is 33703617.

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

It is not a de Polignac number, because 71630733 - 2⁵ = 71630701 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 71630733.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71630737) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 277510 + ... + 277767.

It is an arithmetic number, because the mean of its divisors is an integer number (12216116).

Almost surely, 2^71630733 is an apocalyptic number.

It is an amenable number.

71630733 is a deficient number, since it is larger than the sum of its proper divisors (26098195).

71630733 is a wasteful number, since it uses less digits than its factorization.

71630733 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 555323.

The product of its (nonzero) digits is 7938, while the sum is 30.

The square root of 71630733 is about 8463.4941365845. The cubic root of 71630733 is about 415.3043357229.

The spelling of 71630733 in words is "seventy-one million, six hundred thirty thousand, seven hundred thirty-three".