3654749 has 16 divisors (see below), whose sum is σ = 4363008. Its totient is φ = 2996352.

The previous prime is 3654743. The next prime is 3654751. The reversal of 3654749 is 9474563.

3654749 = T₃₉₆ + T₃₉₇ + ... + T₄₃₇.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3654749 is a prime.

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

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3654743) 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 15 ways as a sum of consecutive naturals, for example, 26609 + ... + 26745.

It is an arithmetic number, because the mean of its divisors is an integer number (272688).

Almost surely, 2^3654749 is an apocalyptic number.

It is an amenable number.

3654749 is a deficient number, since it is larger than the sum of its proper divisors (708259).

3654749 is a wasteful number, since it uses less digits than its factorization.

3654749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284.

The product of its digits is 90720, while the sum is 38.

The square root of 3654749 is about 1911.7397835480. The cubic root of 3654749 is about 154.0349192755.

The spelling of 3654749 in words is "three million, six hundred fifty-four thousand, seven hundred forty-nine".