3618425 has 6 divisors (see below), whose sum is σ = 4486878. Its totient is φ = 2894720.

The previous prime is 3618421. The next prime is 3618443. The reversal of 3618425 is 5248163.

It can be written as a sum of positive squares in 3 ways, for example, as 4624 + 3613801 = 68^2 + 1901^2 .

It is not a de Polignac number, because 3618425 - 2² = 3618421 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3618421) 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, 72344 + ... + 72393.

It is an arithmetic number, because the mean of its divisors is an integer number (747813).

Almost surely, 2^3618425 is an apocalyptic number.

It is an amenable number.

3618425 is a deficient number, since it is larger than the sum of its proper divisors (868453).

3618425 is a wasteful number, since it uses less digits than its factorization.

3618425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144747 (or 144742 counting only the distinct ones).

The product of its digits is 5760, while the sum is 29.

The square root of 3618425 is about 1902.2158132031. The cubic root of 3618425 is about 153.5229092907.

The spelling of 3618425 in words is "three million, six hundred eighteen thousand, four hundred twenty-five".