1984925 has 6 divisors (see below), whose sum is σ = 2461338. Its totient is φ = 1587920.

The previous prime is 1984921. The next prime is 1984979. The reversal of 1984925 is 5294891.

It can be written as a sum of positive squares in 3 ways, for example, as 19321 + 1965604 = 139^2 + 1402^2 .

It is not a de Polignac number, because 1984925 - 2² = 1984921 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1984921) 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, 39674 + ... + 39723.

It is an arithmetic number, because the mean of its divisors is an integer number (410223).

2^1984925 is an apocalyptic number.

It is an amenable number.

1984925 is a deficient number, since it is larger than the sum of its proper divisors (476413).

1984925 is an equidigital number, since it uses as much as digits as its factorization.

1984925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79407 (or 79402 counting only the distinct ones).

The product of its digits is 25920, while the sum is 38.

The square root of 1984925 is about 1408.8736636051. The cubic root of 1984925 is about 125.6747511335.

The spelling of 1984925 in words is "one million, nine hundred eighty-four thousand, nine hundred twenty-five".