3728803 has 4 divisors (see below), whose sum is σ = 4015648. Its totient is φ = 3441960.

The previous prime is 3728789. The next prime is 3728821. The reversal of 3728803 is 3088273.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3088273 = 277 ⋅11149.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3728803 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3728863) 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, 143403 + ... + 143428.

It is an arithmetic number, because the mean of its divisors is an integer number (1003912).

Almost surely, 2^3728803 is an apocalyptic number.

3728803 is a deficient number, since it is larger than the sum of its proper divisors (286845).

3728803 is a wasteful number, since it uses less digits than its factorization.

3728803 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286844.

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 3728803 is about 1931.0108751636. The cubic root of 3728803 is about 155.0683430839.

The spelling of 3728803 in words is "three million, seven hundred twenty-eight thousand, eight hundred three".