8210648394 has 24 divisors (see below), whose sum is σ = 19158180132. Its totient is φ = 2526353280.

The previous prime is 8210648393. The next prime is 8210648431. The reversal of 8210648394 is 4938460128.

It is a happy number.

8210648394 is a `hidden beast` number, since 8 + 210 + 6 + 48 + 394 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 6168060369 + 2042588025 = 78537^2 + 45195^2 .

It is not an unprimeable number, because it can be changed into a prime (8210648393) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17543887 + ... + 17544354.

Almost surely, 2^8210648394 is an apocalyptic number.

8210648394 is an abundant number, since it is smaller than the sum of its proper divisors (10947531738).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8210648394 is a wasteful number, since it uses less digits than its factorization.

8210648394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35088262 (or 35088259 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 45.

The square root of 8210648394 is about 90612.6282258715. The cubic root of 8210648394 is about 2017.4021758052.

The spelling of 8210648394 in words is "eight billion, two hundred ten million, six hundred forty-eight thousand, three hundred ninety-four".