3897584720 has 40 divisors (see below), whose sum is σ = 9082990080. Its totient is φ = 1555402880.

The previous prime is 3897584711. The next prime is 3897584729. The reversal of 3897584720 is 274857983.

It is an interprime number because it is at equal distance from previous prime (3897584711) and next prime (3897584729).

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3897584729) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22040 + ... + 90999.

It is an arithmetic number, because the mean of its divisors is an integer number (227074752).

Almost surely, 2^3897584720 is an apocalyptic number.

It is an amenable number.

3897584720 is an abundant number, since it is smaller than the sum of its proper divisors (5185405360).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3897584720 is a wasteful number, since it uses less digits than its factorization.

3897584720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113483 (or 113477 counting only the distinct ones).

The product of its (nonzero) digits is 3386880, while the sum is 53.

The square root of 3897584720 is about 62430.6392727161. The cubic root of 3897584720 is about 1573.7359095424.

The spelling of 3897584720 in words is "three billion, eight hundred ninety-seven million, five hundred eighty-four thousand, seven hundred twenty".