3907648 has 14 divisors (see below), whose sum is σ = 7754366. Its totient is φ = 1953792.

The previous prime is 3907621. The next prime is 3907649. The reversal of 3907648 is 8467093.

It can be written as a sum of positive squares in only one way, i.e., 3810304 + 97344 = 1952^2 + 312^2 .

It is not an unprimeable number, because it can be changed into a prime (3907649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30465 + ... + 30592.

Almost surely, 2^3907648 is an apocalyptic number.

It is an amenable number.

3907648 is a deficient number, since it is larger than the sum of its proper divisors (3846718).

3907648 is an equidigital number, since it uses as much as digits as its factorization.

3907648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61069 (or 61059 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 3907648 is about 1976.7771751009. Note that the first 3 decimals coincide. The cubic root of 3907648 is about 157.5089169387.

The spelling of 3907648 in words is "three million, nine hundred seven thousand, six hundred forty-eight".