3918025 has 12 divisors (see below), whose sum is σ = 4951692. Its totient is φ = 3074240.

The previous prime is 3918011. The next prime is 3918029. The reversal of 3918025 is 5208193.

It can be written as a sum of positive squares in 6 ways, for example, as 150544 + 3767481 = 388^2 + 1941^2 .

It is not a de Polignac number, because 3918025 - 2¹⁷ = 3786953 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3917984 and 3918002.

It is not an unprimeable number, because it can be changed into a prime (3918029) 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, 154 + ... + 2803.

It is an arithmetic number, because the mean of its divisors is an integer number (412641).

Almost surely, 2^3918025 is an apocalyptic number.

It is an amenable number.

3918025 is a deficient number, since it is larger than the sum of its proper divisors (1033667).

3918025 is a wasteful number, since it uses less digits than its factorization.

3918025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3020 (or 3015 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 3918025 is about 1979.4001616651. The cubic root of 3918025 is about 157.6482185808.

The spelling of 3918025 in words is "three million, nine hundred eighteen thousand, twenty-five".