8779823425 has 12 divisors (see below), whose sum is σ = 11181224956. Its totient is φ = 6834024000.

The previous prime is 8779823407. The next prime is 8779823461. The reversal of 8779823425 is 5243289778.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 168169024 + 8611654401 = 12968^2 + 92799^2 .

It is not a de Polignac number, because 8779823425 - 2²¹ = 8777726273 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4744926 + ... + 4746775.

Almost surely, 2^8779823425 is an apocalyptic number.

It is an amenable number.

8779823425 is a deficient number, since it is larger than the sum of its proper divisors (2401401531).

8779823425 is a wasteful number, since it uses less digits than its factorization.

8779823425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9491748 (or 9491743 counting only the distinct ones).

The product of its digits is 6773760, while the sum is 55.

The square root of 8779823425 is about 93700.7119770175. The cubic root of 8779823425 is about 2062.9811539825.

The spelling of 8779823425 in words is "eight billion, seven hundred seventy-nine million, eight hundred twenty-three thousand, four hundred twenty-five".