3784272 has 20 divisors (see below), whose sum is σ = 9776160. Its totient is φ = 1261408.

The previous prime is 3784271. The next prime is 3784273. The reversal of 3784272 is 2724873.

It is an interprime number because it is at equal distance from previous prime (3784271) and next prime (3784273).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3784271) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39372 + ... + 39467.

It is an arithmetic number, because the mean of its divisors is an integer number (488808).

Almost surely, 2^3784272 is an apocalyptic number.

It is an amenable number.

3784272 is an abundant number, since it is smaller than the sum of its proper divisors (5991888).

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

3784272 is a wasteful number, since it uses less digits than its factorization.

3784272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78850 (or 78844 counting only the distinct ones).

The product of its digits is 18816, while the sum is 33.

The square root of 3784272 is about 1945.3205391400. The cubic root of 3784272 is about 155.8334843876.

The spelling of 3784272 in words is "three million, seven hundred eighty-four thousand, two hundred seventy-two".