3901648 has 40 divisors (see below), whose sum is σ = 7954848. Its totient is φ = 1852032.

The previous prime is 3901609. The next prime is 3901649. The reversal of 3901648 is 8461093.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3901649) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36411 + ... + 36517.

Almost surely, 2^3901648 is an apocalyptic number.

It is an amenable number.

3901648 is an abundant number, since it is smaller than the sum of its proper divisors (4053200).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3901648 is a wasteful number, since it uses less digits than its factorization.

3901648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211 (or 205 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 3901648 is about 1975.2589703631. The cubic root of 3901648 is about 157.4282599289.

The spelling of 3901648 in words is "three million, nine hundred one thousand, six hundred forty-eight".