3896919880 has 96 divisors (see below), whose sum is σ = 10110179520. Its totient is φ = 1324252800.

The previous prime is 3896919869. The next prime is 3896919881. The reversal of 3896919880 is 889196983.

It is a super-2 number, since 2×3896919880² = 30371969102278428800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3896919881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4804675 + ... + 4805485.

It is an arithmetic number, because the mean of its divisors is an integer number (105314370).

Almost surely, 2^3896919880 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3896919880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5055089760).

3896919880 is an abundant number, since it is smaller than the sum of its proper divisors (6213259640).

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

3896919880 is a wasteful number, since it uses less digits than its factorization.

3896919880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1091 (or 956 counting only the distinct ones).

The product of its (nonzero) digits is 6718464, while the sum is 61.

The square root of 3896919880 is about 62425.3144165089. The cubic root of 3896919880 is about 1573.6464231764.

The spelling of 3896919880 in words is "three billion, eight hundred ninety-six million, nine hundred nineteen thousand, eight hundred eighty".