3965321552 has 10 divisors (see below), whose sum is σ = 7682810538. Its totient is φ = 1982660768.

The previous prime is 3965321551. The next prime is 3965321609. The reversal of 3965321552 is 2551235693.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 2010266896 + 1955054656 = 44836^2 + 44216^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3965321551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 123916283 + ... + 123916314.

Almost surely, 2^3965321552 is an apocalyptic number.

It is an amenable number.

3965321552 is a deficient number, since it is larger than the sum of its proper divisors (3717488986).

3965321552 is a wasteful number, since it uses less digits than its factorization.

3965321552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247832605 (or 247832599 counting only the distinct ones).

The product of its digits is 243000, while the sum is 41.

The square root of 3965321552 is about 62970.7992008995. The cubic root of 3965321552 is about 1582.8003470633.

The spelling of 3965321552 in words is "three billion, nine hundred sixty-five million, three hundred twenty-one thousand, five hundred fifty-two".