8434720025 has 6 divisors (see below), whose sum is σ = 10459052862. Its totient is φ = 6747776000.

The previous prime is 8434720001. The next prime is 8434720067. The reversal of 8434720025 is 5200274348.

It can be written as a sum of positive squares in 3 ways, for example, as 245736976 + 8188983049 = 15676^2 + 90493^2 .

It is not a de Polignac number, because 8434720025 - 2¹² = 8434715929 is a prime.

It is a super-2 number, since 2×8434720025² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 168694376 + ... + 168694425.

It is an arithmetic number, because the mean of its divisors is an integer number (1743175477).

Almost surely, 2^8434720025 is an apocalyptic number.

It is an amenable number.

8434720025 is a deficient number, since it is larger than the sum of its proper divisors (2024332837).

8434720025 is a wasteful number, since it uses less digits than its factorization.

8434720025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 337388811 (or 337388806 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 35.

The square root of 8434720025 is about 91840.7318405075. The cubic root of 8434720025 is about 2035.5896023124.

The spelling of 8434720025 in words is "eight billion, four hundred thirty-four million, seven hundred twenty thousand, twenty-five".