3778724 has 12 divisors (see below), whose sum is σ = 6774348. Its totient is φ = 1843200.

The previous prime is 3778717. The next prime is 3778727. The reversal of 3778724 is 4278773.

It can be written as a sum of positive squares in 2 ways, for example, as 422500 + 3356224 = 650^2 + 1832^2 .

It is not an unprimeable number, because it can be changed into a prime (3778727) 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, 11357 + ... + 11684.

It is an arithmetic number, because the mean of its divisors is an integer number (564529).

Almost surely, 2^3778724 is an apocalyptic number.

It is an amenable number.

3778724 is a deficient number, since it is larger than the sum of its proper divisors (2995624).

3778724 is a wasteful number, since it uses less digits than its factorization.

3778724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23086 (or 23084 counting only the distinct ones).

The product of its digits is 65856, while the sum is 38.

The square root of 3778724 is about 1943.8940300335. The cubic root of 3778724 is about 155.7572929811.

The spelling of 3778724 in words is "three million, seven hundred seventy-eight thousand, seven hundred twenty-four".