3909672 has 48 divisors (see below), whose sum is σ = 11405940. Its totient is φ = 1202688.

The previous prime is 3909671. The next prime is 3909691. The reversal of 3909672 is 2769093.

It can be written as a sum of positive squares in 2 ways, for example, as 3896676 + 12996 = 1974^2 + 114^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (3909671) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1153 + ... + 3024.

Almost surely, 2^3909672 is an apocalyptic number.

It is an amenable number.

3909672 is an abundant number, since it is smaller than the sum of its proper divisors (7496268).

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

3909672 is a wasteful number, since it uses less digits than its factorization.

3909672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4202 (or 4195 counting only the distinct ones).

The product of its (nonzero) digits is 20412, while the sum is 36.

The square root of 3909672 is about 1977.2890532241. The cubic root of 3909672 is about 157.5361066124.

The spelling of 3909672 in words is "three million, nine hundred nine thousand, six hundred seventy-two".