3897455776 has 12 divisors (see below), whose sum is σ = 7673116122. Its totient is φ = 1948727872.

The previous prime is 3897455773. The next prime is 3897455813. The reversal of 3897455776 is 6775547983.

It can be written as a sum of positive squares in only one way, i.e., 3049248400 + 848207376 = 55220^2 + 29124^2 .

It is not an unprimeable number, because it can be changed into a prime (3897455773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60897715 + ... + 60897778.

Almost surely, 2^3897455776 is an apocalyptic number.

It is an amenable number.

3897455776 is a deficient number, since it is larger than the sum of its proper divisors (3775660346).

3897455776 is a wasteful number, since it uses less digits than its factorization.

3897455776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121795503 (or 121795495 counting only the distinct ones).

The product of its digits is 44452800, while the sum is 61.

The square root of 3897455776 is about 62429.6065661157. The cubic root of 3897455776 is about 1573.7185546884.

The spelling of 3897455776 in words is "three billion, eight hundred ninety-seven million, four hundred fifty-five thousand, seven hundred seventy-six".