3765728 has 12 divisors (see below), whose sum is σ = 7413840. Its totient is φ = 1882848.

The previous prime is 3765709. The next prime is 3765757. The reversal of 3765728 is 8275673.

It is a happy number.

It is a d-powerful number, because it can be written as 3¹³ + 7⁷ + 6 + 5² + 7⁷ + 2¹⁸ + 8⁶ .

It is a junction number, because it is equal to n+sod(n) for n = 3765691 and 3765700.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58808 + ... + 58871.

It is an arithmetic number, because the mean of its divisors is an integer number (617820).

Almost surely, 2^3765728 is an apocalyptic number.

It is an amenable number.

3765728 is a deficient number, since it is larger than the sum of its proper divisors (3648112).

3765728 is a wasteful number, since it uses less digits than its factorization.

3765728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117689 (or 117681 counting only the distinct ones).

The product of its digits is 70560, while the sum is 38.

The square root of 3765728 is about 1940.5483761040. The cubic root of 3765728 is about 155.5785248017.

The spelling of 3765728 in words is "three million, seven hundred sixty-five thousand, seven hundred twenty-eight".