3749663 has 4 divisors (see below), whose sum is σ = 3753768. Its totient is φ = 3745560.

The previous prime is 3749657. The next prime is 3749677. The reversal of 3749663 is 3669473.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 3749663 - 2⁸ = 3749407 is a prime.

It is a super-2 number, since 2×3749663² = 28119945227138, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3749623) 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, 8 + ... + 2738.

It is an arithmetic number, because the mean of its divisors is an integer number (938442).

Almost surely, 2^3749663 is an apocalyptic number.

3749663 is a deficient number, since it is larger than the sum of its proper divisors (4105).

3749663 is a wasteful number, since it uses less digits than its factorization.

3749663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4104.

The product of its digits is 81648, while the sum is 38.

The square root of 3749663 is about 1936.4046581229. The cubic root of 3749663 is about 155.3569712145.

The spelling of 3749663 in words is "three million, seven hundred forty-nine thousand, six hundred sixty-three".