3997633143 has 16 divisors (see below), whose sum is σ = 6256271360. Its totient is φ = 2222621856.

The previous prime is 3997633103. The next prime is 3997633163. The reversal of 3997633143 is 3413367993.

3997633143 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3997633143 - 2⁸ = 3997632887 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3997633092 and 3997633101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3997633103) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2571703 + ... + 2573256.

It is an arithmetic number, because the mean of its divisors is an integer number (391016960).

Almost surely, 2^3997633143 is an apocalyptic number.

3997633143 is a deficient number, since it is larger than the sum of its proper divisors (2258638217).

3997633143 is a wasteful number, since it uses less digits than its factorization.

3997633143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5145006.

The product of its digits is 1102248, while the sum is 48.

The square root of 3997633143 is about 63226.8387870214. The cubic root of 3997633143 is about 1587.0878942525.

The spelling of 3997633143 in words is "three billion, nine hundred ninety-seven million, six hundred thirty-three thousand, one hundred forty-three".