9821247902 has 16 divisors (see below), whose sum is σ = 15077406960. Its totient is φ = 4795490112.

The previous prime is 9821247893. The next prime is 9821247937. The reversal of 9821247902 is 2097421289.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 686858 + ... + 701010.

It is an arithmetic number, because the mean of its divisors is an integer number (942337935).

Almost surely, 2^9821247902 is an apocalyptic number.

9821247902 is a deficient number, since it is larger than the sum of its proper divisors (5256159058).

9821247902 is a wasteful number, since it uses less digits than its factorization.

9821247902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22267.

The product of its (nonzero) digits is 145152, while the sum is 44.

The square root of 9821247902 is about 99102.2093699227. The cubic root of 9821247902 is about 2141.5204426207.

The spelling of 9821247902 in words is "nine billion, eight hundred twenty-one million, two hundred forty-seven thousand, nine hundred two".