3663742 has 8 divisors (see below), whose sum is σ = 5573232. Its totient is φ = 1806000.

The previous prime is 3663707. The next prime is 3663743. The reversal of 3663742 is 2473663.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-4 number, since 4×3663742⁴ (a number of 27 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3663743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12759 + ... + 13042.

It is an arithmetic number, because the mean of its divisors is an integer number (696654).

Almost surely, 2^3663742 is an apocalyptic number.

3663742 is a deficient number, since it is larger than the sum of its proper divisors (1909490).

3663742 is a wasteful number, since it uses less digits than its factorization.

3663742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25874.

The product of its digits is 18144, while the sum is 31.

The square root of 3663742 is about 1914.0903844908. The cubic root of 3663742 is about 154.1611569819.

It can be divided in two parts, 3663 and 742, that multiplied together give a triangular number (2717946 = T₂₃₃₁).

The spelling of 3663742 in words is "three million, six hundred sixty-three thousand, seven hundred forty-two".