8646390902 has 4 divisors (see below), whose sum is σ = 12969586356. Its totient is φ = 4323195450.

The previous prime is 8646390901. The next prime is 8646390967. The reversal of 8646390902 is 2090936468.

8646390902 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8646390901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2161597724 + ... + 2161597727.

It is an arithmetic number, because the mean of its divisors is an integer number (3242396589).

Almost surely, 2^8646390902 is an apocalyptic number.

8646390902 is a deficient number, since it is larger than the sum of its proper divisors (4323195454).

8646390902 is a wasteful number, since it uses less digits than its factorization.

8646390902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4323195453.

The product of its (nonzero) digits is 559872, while the sum is 47.

The square root of 8646390902 is about 92985.9715333447. The cubic root of 8646390902 is about 2052.4769506091.

The spelling of 8646390902 in words is "eight billion, six hundred forty-six million, three hundred ninety thousand, nine hundred two".