3899701938 has 64 divisors (see below), whose sum is σ = 8610877440. Its totient is φ = 1167566400.

The previous prime is 3899701933. The next prime is 3899701943. The reversal of 3899701938 is 8391079983.

3899701938 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (3899701933) and next prime (3899701943).

It is not an unprimeable number, because it can be changed into a prime (3899701933) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3934623 + ... + 3935613.

It is an arithmetic number, because the mean of its divisors is an integer number (134544960).

Almost surely, 2^3899701938 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3899701938, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4305438720).

3899701938 is an abundant number, since it is smaller than the sum of its proper divisors (4711175502).

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

3899701938 is a wasteful number, since it uses less digits than its factorization.

3899701938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1663.

The product of its (nonzero) digits is 2939328, while the sum is 57.

The square root of 3899701938 is about 62447.5935324973. The cubic root of 3899701938 is about 1574.0208158026.

The spelling of 3899701938 in words is "three billion, eight hundred ninety-nine million, seven hundred one thousand, nine hundred thirty-eight".