3897672480 has 192 divisors, whose sum is σ = 14691438720. Its totient is φ = 959413248.

The previous prime is 3897672479. The next prime is 3897672491. The reversal of 3897672480 is 842767983.

3897672480 is a `hidden beast` number, since 3 + 8 + 97 + 6 + 72 + 480 = 666.

It is a super-2 number, since 2×3897672480² = 30383701522698700800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21459 + ... + 90861.

It is an arithmetic number, because the mean of its divisors is an integer number (76517910).

Almost surely, 2^3897672480 is an apocalyptic number.

3897672480 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3897672480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7345719360).

3897672480 is an abundant number, since it is smaller than the sum of its proper divisors (10793766240).

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

3897672480 is a wasteful number, since it uses less digits than its factorization.

3897672480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69440 (or 69426 counting only the distinct ones).

The product of its (nonzero) digits is 4064256, while the sum is 54.

The square root of 3897672480 is about 62431.3421287737. The cubic root of 3897672480 is about 1573.7477211331.

The spelling of 3897672480 in words is "three billion, eight hundred ninety-seven million, six hundred seventy-two thousand, four hundred eighty".