3728477 has 4 divisors (see below), whose sum is σ = 3770460. Its totient is φ = 3686496.

The previous prime is 3728471. The next prime is 3728479. The reversal of 3728477 is 7748273.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7748273 = 13 ⋅596021.

It can be written as a sum of positive squares in 2 ways, for example, as 2105401 + 1623076 = 1451^2 + 1274^2 .

It is a cyclic number.

It is not a de Polignac number, because 3728477 - 2¹⁶ = 3662941 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3728477.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3728471) 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, 20858 + ... + 21035.

It is an arithmetic number, because the mean of its divisors is an integer number (942615).

Almost surely, 2^3728477 is an apocalyptic number.

It is an amenable number.

3728477 is a deficient number, since it is larger than the sum of its proper divisors (41983).

3728477 is an equidigital number, since it uses as much as digits as its factorization.

3728477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41982.

The product of its digits is 65856, while the sum is 38.

The square root of 3728477 is about 1930.9264615723. The cubic root of 3728477 is about 155.0638238719.

The spelling of 3728477 in words is "three million, seven hundred twenty-eight thousand, four hundred seventy-seven".