3421705025 has 12 divisors (see below), whose sum is σ = 4312472124. Its totient is φ = 2692488000.

The previous prime is 3421704991. The next prime is 3421705097. The reversal of 3421705025 is 5205071243.

It is a happy number.

3421705025 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 1564439809 + 1857265216 = 39553^2 + 43096^2 .

It is not a de Polignac number, because 3421705025 - 2¹⁶ = 3421639489 is a prime.

It is a super-2 number, since 2×3421705025² = 23416130556220501250, which 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 11 ways as a sum of consecutive naturals, for example, 1120346 + ... + 1123395.

It is an arithmetic number, because the mean of its divisors is an integer number (359372677).

Almost surely, 2^3421705025 is an apocalyptic number.

It is an amenable number.

3421705025 is a deficient number, since it is larger than the sum of its proper divisors (890767099).

3421705025 is a wasteful number, since it uses less digits than its factorization.

3421705025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2243812 (or 2243807 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 29.

The square root of 3421705025 is about 58495.3419085657. The cubic root of 3421705025 is about 1506.8875886389.

Adding to 3421705025 its reverse (5205071243), we get a palindrome (8626776268).

The spelling of 3421705025 in words is "three billion, four hundred twenty-one million, seven hundred five thousand, twenty-five".