3641925 has 36 divisors (see below), whose sum is σ = 7011456. Its totient is φ = 1663200.

The previous prime is 3641923. The next prime is 3641933. The reversal of 3641925 is 5291463.

3641925 = 245² + 246² + ... + 294².

3641925 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3641925 - 2¹ = 3641923 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3641892 and 3641901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3641923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 3180 + ... + 4170.

Almost surely, 2^3641925 is an apocalyptic number.

3641925 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3641925 is a deficient number, since it is larger than the sum of its proper divisors (3369531).

3641925 is a wasteful number, since it uses less digits than its factorization.

3641925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1018 (or 1006 counting only the distinct ones).

The product of its digits is 6480, while the sum is 30.

The square root of 3641925 is about 1908.3828232302. The cubic root of 3641925 is about 153.8545458563.

The spelling of 3641925 in words is "three million, six hundred forty-one thousand, nine hundred twenty-five".