3957627145 has 4 divisors (see below), whose sum is σ = 4749152580. Its totient is φ = 3166101712.

The previous prime is 3957627133. The next prime is 3957627203. The reversal of 3957627145 is 5417267593.

3957627145 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1452524544 + 2505102601 = 38112^2 + 50051^2 .

It is a cyclic number.

It is not a de Polignac number, because 3957627145 - 2⁷ = 3957627017 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax 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, 395762710 + ... + 395762719.

It is an arithmetic number, because the mean of its divisors is an integer number (1187288145).

Almost surely, 2^3957627145 is an apocalyptic number.

It is an amenable number.

3957627145 is a deficient number, since it is larger than the sum of its proper divisors (791525435).

3957627145 is an equidigital number, since it uses as much as digits as its factorization.

3957627145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 791525434.

The product of its digits is 1587600, while the sum is 49.

The square root of 3957627145 is about 62909.6744944687. The cubic root of 3957627145 is about 1581.7759159882.

The spelling of 3957627145 in words is "three billion, nine hundred fifty-seven million, six hundred twenty-seven thousand, one hundred forty-five".