3784725 has 72 divisors (see below), whose sum is σ = 8124480. Its totient is φ = 1710720.

The previous prime is 3784723. The next prime is 3784733. The reversal of 3784725 is 5274873.

3784725 = T₂₄₆ + T₂₄₇ + ... + T₃₃₄.

It is not a de Polignac number, because 3784725 - 2¹ = 3784723 is a prime.

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 3784725.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3784723) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 42481 + ... + 42569.

It is an arithmetic number, because the mean of its divisors is an integer number (112840).

Almost surely, 2^3784725 is an apocalyptic number.

3784725 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3784725 is an abundant number, since it is smaller than the sum of its proper divisors (4339755).

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

3784725 is an equidigital number, since it uses as much as digits as its factorization.

3784725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121 (or 104 counting only the distinct ones).

The product of its digits is 47040, while the sum is 36.

The square root of 3784725 is about 1945.4369689096. The cubic root of 3784725 is about 155.8397022063.

The spelling of 3784725 in words is "three million, seven hundred eighty-four thousand, seven hundred twenty-five".