3897272547 has 12 divisors (see below), whose sum is σ = 6433592880. Its totient is φ = 2227012848.

The previous prime is 3897272543. The next prime is 3897272563. The reversal of 3897272547 is 7452727983.

3897272547 is a `hidden beast` number, since 3 + 8 + 97 + 2 + 7 + 2 + 547 = 666.

3897272547 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3897272547 - 2² = 3897272543 is a prime.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 3897272493 and 3897272502.

It is not an unprimeable number, because it can be changed into a prime (3897272543) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30930672 + ... + 30930797.

It is an arithmetic number, because the mean of its divisors is an integer number (536132740).

Almost surely, 2^3897272547 is an apocalyptic number.

3897272547 is a deficient number, since it is larger than the sum of its proper divisors (2536320333).

3897272547 is a wasteful number, since it uses less digits than its factorization.

3897272547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61861482 (or 61861479 counting only the distinct ones).

The product of its digits is 5927040, while the sum is 54.

The square root of 3897272547 is about 62428.1390640471. The cubic root of 3897272547 is about 1573.6938928396.

The spelling of 3897272547 in words is "three billion, eight hundred ninety-seven million, two hundred seventy-two thousand, five hundred forty-seven".