8723787425 has 12 divisors (see below), whose sum is σ = 10886402556. Its totient is φ = 6934574400.

The previous prime is 8723787421. The next prime is 8723787503. The reversal of 8723787425 is 5247873278.

It can be written as a sum of positive squares in 6 ways, for example, as 437144464 + 8286642961 = 20908^2 + 91031^2 .

It is not a de Polignac number, because 8723787425 - 2² = 8723787421 is a prime.

It is a super-2 number, since 2×8723787425² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8723787421) 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, 1107386 + ... + 1115235.

It is an arithmetic number, because the mean of its divisors is an integer number (907200213).

Almost surely, 2^8723787425 is an apocalyptic number.

It is an amenable number.

8723787425 is a deficient number, since it is larger than the sum of its proper divisors (2162615131).

8723787425 is a wasteful number, since it uses less digits than its factorization.

8723787425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2222788 (or 2222783 counting only the distinct ones).

The product of its digits is 5268480, while the sum is 53.

The square root of 8723787425 is about 93401.2174706518. The cubic root of 8723787425 is about 2058.5828869444.

The spelling of 8723787425 in words is "eight billion, seven hundred twenty-three million, seven hundred eighty-seven thousand, four hundred twenty-five".