8421387002 has 64 divisors (see below), whose sum is σ = 15586421760. Its totient is φ = 3330706176.

The previous prime is 8421387001. The next prime is 8421387047. The reversal of 8421387002 is 2007831248.

It is not an unprimeable number, because it can be changed into a prime (8421387001) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2744273 + ... + 2747339.

It is an arithmetic number, because the mean of its divisors is an integer number (243537840).

Almost surely, 2^8421387002 is an apocalyptic number.

8421387002 is a deficient number, since it is larger than the sum of its proper divisors (7165034758).

8421387002 is a wasteful number, since it uses less digits than its factorization.

8421387002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3315.

The product of its (nonzero) digits is 21504, while the sum is 35.

The square root of 8421387002 is about 91768.1153887340. The cubic root of 8421387002 is about 2034.5164635036.

The spelling of 8421387002 in words is "eight billion, four hundred twenty-one million, three hundred eighty-seven thousand, two".