3728207 has 4 divisors (see below), whose sum is σ = 4260816. Its totient is φ = 3195600.

The previous prime is 3728203. The next prime is 3728243. The reversal of 3728207 is 7028273.

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 3728207 - 2² = 3728203 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3728207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3728203) 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, 266294 + ... + 266307.

It is an arithmetic number, because the mean of its divisors is an integer number (1065204).

Almost surely, 2^3728207 is an apocalyptic number.

3728207 is a deficient number, since it is larger than the sum of its proper divisors (532609).

3728207 is an equidigital number, since it uses as much as digits as its factorization.

3728207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 532608.

The product of its (nonzero) digits is 4704, while the sum is 29.

The square root of 3728207 is about 1930.8565456812. The cubic root of 3728207 is about 155.0600807669.

The spelling of 3728207 in words is "three million, seven hundred twenty-eight thousand, two hundred seven".