3957597887 has 4 divisors (see below), whose sum is σ = 3958063080. Its totient is φ = 3957132696.

The previous prime is 3957597883. The next prime is 3957597899. The reversal of 3957597887 is 7887957593.

It is a happy number.

3957597887 is digitally balanced in base 3, 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 is a cyclic number.

It is not a de Polignac number, because 3957597887 - 2² = 3957597883 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3957597881) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 219593 + ... + 236930.

It is an arithmetic number, because the mean of its divisors is an integer number (989515770).

Almost surely, 2^3957597887 is an apocalyptic number.

3957597887 is a deficient number, since it is larger than the sum of its proper divisors (465193).

3957597887 is an equidigital number, since it uses as much as digits as its factorization.

3957597887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 465192.

The product of its digits is 133358400, while the sum is 68.

The square root of 3957597887 is about 62909.4419542885. The cubic root of 3957597887 is about 1581.7720180538.

The spelling of 3957597887 in words is "three billion, nine hundred fifty-seven million, five hundred ninety-seven thousand, eight hundred eighty-seven".