71630787 has 8 divisors (see below), whose sum is σ = 95604480. Its totient is φ = 47705480.

The previous prime is 71630771. The next prime is 71630789. The reversal of 71630787 is 78703617.

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

It is a cyclic number.

It is not a de Polignac number, because 71630787 - 2⁴ = 71630771 is a prime.

It is not an unprimeable number, because it can be changed into a prime (71630789) 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, 8487 + ... + 14672.

It is an arithmetic number, because the mean of its divisors is an integer number (11950560).

Almost surely, 2^71630787 is an apocalyptic number.

71630787 is a deficient number, since it is larger than the sum of its proper divisors (23973693).

71630787 is a wasteful number, since it uses less digits than its factorization.

71630787 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24193.

The product of its (nonzero) digits is 49392, while the sum is 39.

The square root of 71630787 is about 8463.4973267556. The cubic root of 71630787 is about 415.3044400842.

The spelling of 71630787 in words is "seventy-one million, six hundred thirty thousand, seven hundred eighty-seven".