9821630914 has 8 divisors (see below), whose sum is σ = 14831322300. Its totient is φ = 4877856816.

The previous prime is 9821630911. The next prime is 9821630921. The reversal of 9821630914 is 4190361289.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 9676066689 + 145564225 = 98367^2 + 12065^2 .

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

It is not an unprimeable number, because it can be changed into a prime (9821630911) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16478949 + ... + 16479544.

Almost surely, 2^9821630914 is an apocalyptic number.

9821630914 is a deficient number, since it is larger than the sum of its proper divisors (5009691386).

9821630914 is a wasteful number, since it uses less digits than its factorization.

9821630914 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32958644.

The product of its (nonzero) digits is 93312, while the sum is 43.

The square root of 9821630914 is about 99104.1417600697. The cubic root of 9821630914 is about 2141.5482808131.

The spelling of 9821630914 in words is "nine billion, eight hundred twenty-one million, six hundred thirty thousand, nine hundred fourteen".