3972226625 has 32 divisors (see below), whose sum is σ = 5082255360. Its totient is φ = 3098592000.

The previous prime is 3972226597. The next prime is 3972226627. The reversal of 3972226625 is 5266222793.

3972226625 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3972226625 - 2⁸ = 3972226369 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3972226627) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 934505 + ... + 938745.

It is an arithmetic number, because the mean of its divisors is an integer number (158820480).

Almost surely, 2^3972226625 is an apocalyptic number.

It is an amenable number.

3972226625 is a deficient number, since it is larger than the sum of its proper divisors (1110028735).

3972226625 is a wasteful number, since it uses less digits than its factorization.

3972226625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4442 (or 4432 counting only the distinct ones).

The product of its digits is 544320, while the sum is 44.

The square root of 3972226625 is about 63025.6029324591. The cubic root of 3972226625 is about 1583.7185587754.

The spelling of 3972226625 in words is "three billion, nine hundred seventy-two million, two hundred twenty-six thousand, six hundred twenty-five".