3928166970 has 128 divisors (see below), whose sum is σ = 12214056960. Its totient is φ = 785168640.

The previous prime is 3928166947. The next prime is 3928166971. The reversal of 3928166970 is 796618293.

It is not an unprimeable number, because it can be changed into a prime (3928166971) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 14005 + ... + 89735.

It is an arithmetic number, because the mean of its divisors is an integer number (95422320).

Almost surely, 2^3928166970 is an apocalyptic number.

3928166970 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 3928166970, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6107028480).

3928166970 is an abundant number, since it is smaller than the sum of its proper divisors (8285889990).

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

3928166970 is a wasteful number, since it uses less digits than its factorization.

3928166970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75780.

The product of its (nonzero) digits is 979776, while the sum is 51.

The square root of 3928166970 is about 62675.0905065162. The cubic root of 3928166970 is about 1577.8412769396.

The spelling of 3928166970 in words is "three billion, nine hundred twenty-eight million, one hundred sixty-six thousand, nine hundred seventy".