3815425 has 6 divisors (see below), whose sum is σ = 4731158. Its totient is φ = 3052320.

The previous prime is 3815423. The next prime is 3815431. The reversal of 3815425 is 5245183.

It can be written as a sum of positive squares in 3 ways, for example, as 1046529 + 2768896 = 1023^2 + 1664^2 .

It is not a de Polignac number, because 3815425 - 2¹ = 3815423 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3815393 and 3815402.

It is not an unprimeable number, because it can be changed into a prime (3815423) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 76284 + ... + 76333.

It is a Proth number, since it is equal to 1863 ⋅ 2¹¹ + 1 and 1863 < 2¹¹.

Almost surely, 2^3815425 is an apocalyptic number.

It is an amenable number.

3815425 is a deficient number, since it is larger than the sum of its proper divisors (915733).

3815425 is a wasteful number, since it uses less digits than its factorization.

3815425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152627 (or 152622 counting only the distinct ones).

The product of its digits is 4800, while the sum is 28.

The square root of 3815425 is about 1953.3112911157. The cubic root of 3815425 is about 156.2599353682.

The spelling of 3815425 in words is "three million, eight hundred fifteen thousand, four hundred twenty-five".