3998952894 has 16 divisors (see below), whose sum is σ = 8009038080. Its totient is φ = 1331128920.

The previous prime is 3998952889. The next prime is 3998952907. The reversal of 3998952894 is 4982598993.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 459172 + ... + 467799.

It is an arithmetic number, because the mean of its divisors is an integer number (500564880).

Almost surely, 2^3998952894 is an apocalyptic number.

3998952894 is an abundant number, since it is smaller than the sum of its proper divisors (4010085186).

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

3998952894 is a wasteful number, since it uses less digits than its factorization.

3998952894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 927695.

The product of its digits is 50388480, while the sum is 66.

The square root of 3998952894 is about 63237.2745617646. The cubic root of 3998952894 is about 1587.2625251160.

The spelling of 3998952894 in words is "three billion, nine hundred ninety-eight million, nine hundred fifty-two thousand, eight hundred ninety-four".