3872747 has 4 divisors (see below), whose sum is σ = 4006320. Its totient is φ = 3739176.

The previous prime is 3872731. The next prime is 3872761. The reversal of 3872747 is 7472783.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3872747 - 2⁴ = 3872731 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3872747.

It is not an unprimeable number, because it can be changed into a prime (3872767) 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, 66743 + ... + 66800.

It is an arithmetic number, because the mean of its divisors is an integer number (1001580).

Almost surely, 2^3872747 is an apocalyptic number.

3872747 is a deficient number, since it is larger than the sum of its proper divisors (133573).

3872747 is a wasteful number, since it uses less digits than its factorization.

3872747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133572.

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

The square root of 3872747 is about 1967.9296227254. The cubic root of 3872747 is about 157.0385857261.

The spelling of 3872747 in words is "three million, eight hundred seventy-two thousand, seven hundred forty-seven".