3897841654 has 8 divisors (see below), whose sum is σ = 6682014288. Its totient is φ = 1670503560.

The previous prime is 3897841609. The next prime is 3897841687. The reversal of 3897841654 is 4561487983.

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

It is a junction number, because it is equal to n+sod(n) for n = 3897841595 and 3897841604.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 139208617 + ... + 139208644.

It is an arithmetic number, because the mean of its divisors is an integer number (835251786).

Almost surely, 2^3897841654 is an apocalyptic number.

3897841654 is a deficient number, since it is larger than the sum of its proper divisors (2784172634).

3897841654 is a wasteful number, since it uses less digits than its factorization.

3897841654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278417270.

The product of its digits is 5806080, while the sum is 55.

The square root of 3897841654 is about 62432.6969944435. The cubic root of 3897841654 is about 1573.7704897082.

The spelling of 3897841654 in words is "three billion, eight hundred ninety-seven million, eight hundred forty-one thousand, six hundred fifty-four".