632551947 has 16 divisors (see below), whose sum is σ = 849945600. Its totient is φ = 418442112.

The previous prime is 632551847. The next prime is 632551949. The reversal of 632551947 is 749155236.

It is not a de Polignac number, because 632551947 - 2²⁰ = 631503371 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 632551899 and 632551908.

It is not an unprimeable number, because it can be changed into a prime (632551949) 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 15 ways as a sum of consecutive naturals, for example, 257278 + ... + 259724.

It is an arithmetic number, because the mean of its divisors is an integer number (53121600).

Almost surely, 2^632551947 is an apocalyptic number.

632551947 is a deficient number, since it is larger than the sum of its proper divisors (217393653).

632551947 is a wasteful number, since it uses less digits than its factorization.

632551947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3082.

The product of its digits is 226800, while the sum is 42.

The square root of 632551947 is about 25150.5854206219. The cubic root of 632551947 is about 858.4178351301.

The spelling of 632551947 in words is "six hundred thirty-two million, five hundred fifty-one thousand, nine hundred forty-seven".