71630467 has 4 divisors (see below), whose sum is σ = 71660176. Its totient is φ = 71600760.

The previous prime is 71630459. The next prime is 71630479. The reversal of 71630467 is 76403617.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 76403617 = 19 ⋅4021243.

It is a cyclic number.

It is not a de Polignac number, because 71630467 - 2³ = 71630459 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71630497) 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, 10884 + ... + 16177.

It is an arithmetic number, because the mean of its divisors is an integer number (17915044).

Almost surely, 2^71630467 is an apocalyptic number.

71630467 is a deficient number, since it is larger than the sum of its proper divisors (29709).

71630467 is a wasteful number, since it uses less digits than its factorization.

71630467 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29708.

The product of its (nonzero) digits is 21168, while the sum is 34.

The square root of 71630467 is about 8463.4784220201. The cubic root of 71630467 is about 415.3038216461.

The spelling of 71630467 in words is "seventy-one million, six hundred thirty thousand, four hundred sixty-seven".