3749647 has 4 divisors (see below), whose sum is σ = 4090536. Its totient is φ = 3408760.

The previous prime is 3749633. The next prime is 3749653. The reversal of 3749647 is 7469473.

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 3749647 - 2¹⁵ = 3716879 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3749657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 170428 + ... + 170449.

It is an arithmetic number, because the mean of its divisors is an integer number (1022634).

Almost surely, 2^3749647 is an apocalyptic number.

3749647 is a deficient number, since it is larger than the sum of its proper divisors (340889).

3749647 is a wasteful number, since it uses less digits than its factorization.

3749647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340888.

The product of its digits is 127008, while the sum is 40.

The square root of 3749647 is about 1936.4005267506. The cubic root of 3749647 is about 155.3567502422.

The spelling of 3749647 in words is "three million, seven hundred forty-nine thousand, six hundred forty-seven".