632871849 has 4 divisors (see below), whose sum is σ = 843829136. Its totient is φ = 421914564.

The previous prime is 632871829. The next prime is 632871857. The reversal of 632871849 is 948178236.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 632871849 - 2⁸ = 632871593 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 632871798 and 632871807.

It is not an unprimeable number, because it can be changed into a prime (632871809) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 105478639 + ... + 105478644.

It is an arithmetic number, because the mean of its divisors is an integer number (210957284).

Almost surely, 2^632871849 is an apocalyptic number.

It is an amenable number.

632871849 is a deficient number, since it is larger than the sum of its proper divisors (210957287).

632871849 is a wasteful number, since it uses less digits than its factorization.

632871849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210957286.

The product of its digits is 580608, while the sum is 48.

The square root of 632871849 is about 25156.9443494237. The cubic root of 632871849 is about 858.5625206397.

The spelling of 632871849 in words is "six hundred thirty-two million, eight hundred seventy-one thousand, eight hundred forty-nine".