3728650 has 12 divisors (see below), whose sum is σ = 6935382. Its totient is φ = 1491440.

The previous prime is 3728633. The next prime is 3728671. The reversal of 3728650 is 568273.

It can be written as a sum of positive squares in 3 ways, for example, as 3087049 + 641601 = 1757^2 + 801^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 37237 + ... + 37336.

Almost surely, 2^3728650 is an apocalyptic number.

3728650 is a deficient number, since it is larger than the sum of its proper divisors (3206732).

3728650 is a wasteful number, since it uses less digits than its factorization.

3728650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74585 (or 74580 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 3728650 is about 1930.9712582014. The cubic root of 3728650 is about 155.0662221368.

The spelling of 3728650 in words is "three million, seven hundred twenty-eight thousand, six hundred fifty".