3978627252 has 12 divisors (see below), whose sum is σ = 9283463616. Its totient is φ = 1326209080.

The previous prime is 3978627179. The next prime is 3978627271. The reversal of 3978627252 is 2527268793.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 3978627195 and 3978627204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 165776124 + ... + 165776147.

It is an arithmetic number, because the mean of its divisors is an integer number (773621968).

Almost surely, 2^3978627252 is an apocalyptic number.

It is an amenable number.

3978627252 is an abundant number, since it is smaller than the sum of its proper divisors (5304836364).

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

3978627252 is a wasteful number, since it uses less digits than its factorization.

3978627252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331552278 (or 331552276 counting only the distinct ones).

The product of its digits is 2540160, while the sum is 51.

The square root of 3978627252 is about 63076.3604847331. The cubic root of 3978627252 is about 1584.5687412189.

The spelling of 3978627252 in words is "three billion, nine hundred seventy-eight million, six hundred twenty-seven thousand, two hundred fifty-two".