8390046722 has 18 divisors (see below), whose sum is σ = 12684754179. Its totient is φ = 4162055940.

The previous prime is 8390046683. The next prime is 8390046727. The reversal of 8390046722 is 2276400938.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 4195023361 + 4195023361 = 64769^2 + 64769^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=64769.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8390046722.

It is not an unprimeable number, because it can be changed into a prime (8390046727) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 30959447 + ... + 30959717.

Almost surely, 2^8390046722 is an apocalyptic number.

8390046722 is a deficient number, since it is larger than the sum of its proper divisors (4294707457).

8390046722 is an frugal number, since it uses more digits than its factorization.

8390046722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1022 (or 512 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 41.

The square root of 8390046722 is about 91597.1982213430. The cubic root of 8390046722 is about 2031.9895014196.

The spelling of 8390046722 in words is "eight billion, three hundred ninety million, forty-six thousand, seven hundred twenty-two".