3897808445 has 8 divisors (see below), whose sum is σ = 4689713760. Its totient is φ = 3110017680.

The previous prime is 3897808429. The next prime is 3897808469. The reversal of 3897808445 is 5448087983.

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

It is not a de Polignac number, because 3897808445 - 2⁴ = 3897808429 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1026551 + ... + 1030340.

It is an arithmetic number, because the mean of its divisors is an integer number (586214220).

Almost surely, 2^3897808445 is an apocalyptic number.

It is an amenable number.

3897808445 is a deficient number, since it is larger than the sum of its proper divisors (791905315).

3897808445 is a wasteful number, since it uses less digits than its factorization.

3897808445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2057275.

The product of its (nonzero) digits is 7741440, while the sum is 56.

The square root of 3897808445 is about 62432.4310354803. The cubic root of 3897808445 is about 1573.7660202695.

The spelling of 3897808445 in words is "three billion, eight hundred ninety-seven million, eight hundred eight thousand, four hundred forty-five".