3921552 has 60 divisors (see below), whose sum is σ = 11117964. Its totient is φ = 1290240.

The previous prime is 3921551. The next prime is 3921559. The reversal of 3921552 is 2551293.

It can be written as a sum of positive squares in 2 ways, for example, as 1218816 + 2702736 = 1104^2 + 1644^2 .

It is not an unprimeable number, because it can be changed into a prime (3921551) 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, 16152 + ... + 16392.

Almost surely, 2^3921552 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3921552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5558982).

3921552 is an abundant number, since it is smaller than the sum of its proper divisors (7196412).

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

3921552 is a wasteful number, since it uses less digits than its factorization.

3921552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 368 (or 359 counting only the distinct ones).

The product of its digits is 2700, while the sum is 27.

The square root of 3921552 is about 1980.2908877233. The cubic root of 3921552 is about 157.6955092869.

The spelling of 3921552 in words is "three million, nine hundred twenty-one thousand, five hundred fifty-two".