3997858065 has 8 divisors (see below), whose sum is σ = 6396572928. Its totient is φ = 2132190960.

The previous prime is 3997858063. The next prime is 3997858069. The reversal of 3997858065 is 5608587993.

3997858065 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3997858065 - 2¹ = 3997858063 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3997858063) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 133261921 + ... + 133261950.

It is an arithmetic number, because the mean of its divisors is an integer number (799571616).

Almost surely, 2^3997858065 is an apocalyptic number.

It is an amenable number.

3997858065 is a deficient number, since it is larger than the sum of its proper divisors (2398714863).

3997858065 is a wasteful number, since it uses less digits than its factorization.

3997858065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266523879.

The product of its (nonzero) digits is 16329600, while the sum is 60.

The square root of 3997858065 is about 63228.6174528591. The cubic root of 3997858065 is about 1587.1176588887.

The spelling of 3997858065 in words is "three billion, nine hundred ninety-seven million, eight hundred fifty-eight thousand, sixty-five".