3997094992 has 40 divisors (see below), whose sum is σ = 8473600512. Its totient is φ = 1811443200.

The previous prime is 3997094987. The next prime is 3997095017. The reversal of 3997094992 is 2994907993.

It is a self number, because there is not a number n which added to its sum of digits gives 3997094992.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25617 + ... + 93007.

Almost surely, 2^3997094992 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 3997094992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4236800256).

3997094992 is an abundant number, since it is smaller than the sum of its proper divisors (4476505520).

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

3997094992 is a wasteful number, since it uses less digits than its factorization.

3997094992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67747 (or 67741 counting only the distinct ones).

The product of its (nonzero) digits is 9920232, while the sum is 61.

The square root of 3997094992 is about 63222.5829273053. The cubic root of 3997094992 is about 1587.0166745053.

The spelling of 3997094992 in words is "three billion, nine hundred ninety-seven million, ninety-four thousand, nine hundred ninety-two".