3917025 has 48 divisors (see below), whose sum is σ = 8233600. Its totient is φ = 1788480.

The previous prime is 3917009. The next prime is 3917033. The reversal of 3917025 is 5207193.

It is not a de Polignac number, because 3917025 - 2⁴ = 3917009 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 3917025.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4311 + ... + 5139.

Almost surely, 2^3917025 is an apocalyptic number.

3917025 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3917025 is an abundant number, since it is smaller than the sum of its proper divisors (4316575).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3917025 is a wasteful number, since it uses less digits than its factorization.

3917025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 855 (or 844 counting only the distinct ones).

The product of its (nonzero) digits is 1890, while the sum is 27.

The square root of 3917025 is about 1979.1475437673. The cubic root of 3917025 is about 157.6348052214.

The spelling of 3917025 in words is "three million, nine hundred seventeen thousand, twenty-five".