3897217948 has 48 divisors (see below), whose sum is σ = 7601852160. Its totient is φ = 1736064000.

The previous prime is 3897217873. The next prime is 3897217949. The reversal of 3897217948 is 8497127983.

3897217948 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 3897217892 and 3897217901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3897217949) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 643398 + ... + 649426.

It is an arithmetic number, because the mean of its divisors is an integer number (158371920).

Almost surely, 2^3897217948 is an apocalyptic number.

It is an amenable number.

3897217948 is a deficient number, since it is larger than the sum of its proper divisors (3704634212).

3897217948 is a wasteful number, since it uses less digits than its factorization.

3897217948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6478 (or 6476 counting only the distinct ones).

The product of its digits is 6096384, while the sum is 58.

The square root of 3897217948 is about 62427.7017677249. The cubic root of 3897217948 is about 1573.6865438955.

The spelling of 3897217948 in words is "three billion, eight hundred ninety-seven million, two hundred seventeen thousand, nine hundred forty-eight".