3899996946 has 12 divisors (see below), whose sum is σ = 8449993422. Its totient is φ = 1299998976.

The previous prime is 3899996941. The next prime is 3899996953. The reversal of 3899996946 is 6496999983.

It is a happy number.

3899996946 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 3512340225 + 387656721 = 59265^2 + 19689^2 .

It is not an unprimeable number, because it can be changed into a prime (3899996941) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 108333231 + ... + 108333266.

Almost surely, 2^3899996946 is an apocalyptic number.

3899996946 is an abundant number, since it is smaller than the sum of its proper divisors (4549996476).

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

3899996946 is a wasteful number, since it uses less digits than its factorization.

3899996946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216666505 (or 216666502 counting only the distinct ones).

The product of its digits is 204073344, while the sum is 72.

The square root of 3899996946 is about 62449.9555324101. The cubic root of 3899996946 is about 1574.0605057611.

The spelling of 3899996946 in words is "three billion, eight hundred ninety-nine million, nine hundred ninety-six thousand, nine hundred forty-six".