3897566674 has 4 divisors (see below), whose sum is σ = 5846350014. Its totient is φ = 1948783336.

The previous prime is 3897566633. The next prime is 3897566681. The reversal of 3897566674 is 4766657983.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4766657983 = 67 ⋅71144149.

It can be written as a sum of positive squares in only one way, i.e., 1975358025 + 1922208649 = 44445^2 + 43843^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 974391667 + ... + 974391670.

Almost surely, 2^3897566674 is an apocalyptic number.

3897566674 is a deficient number, since it is larger than the sum of its proper divisors (1948783340).

3897566674 is a wasteful number, since it uses less digits than its factorization.

3897566674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1948783339.

The product of its digits is 45722880, while the sum is 61.

The square root of 3897566674 is about 62430.4947441553. The cubic root of 3897566674 is about 1573.7334807150.

The spelling of 3897566674 in words is "three billion, eight hundred ninety-seven million, five hundred sixty-six thousand, six hundred seventy-four".