633987452 has 24 divisors (see below), whose sum is σ = 1302246624. Its totient is φ = 264364992.

The previous prime is 633987379. The next prime is 633987463. The reversal of 633987452 is 254789336.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 633987397 and 633987406.

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, 304943 + ... + 307014.

It is an arithmetic number, because the mean of its divisors is an integer number (54260276).

Almost surely, 2^633987452 is an apocalyptic number.

It is an amenable number.

633987452 is an abundant number, since it is smaller than the sum of its proper divisors (668259172).

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

633987452 is a wasteful number, since it uses less digits than its factorization.

633987452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 612005 (or 612003 counting only the distinct ones).

The product of its digits is 1088640, while the sum is 47.

The square root of 633987452 is about 25179.1074504241. The cubic root of 633987452 is about 859.0667052154.

The spelling of 633987452 in words is "six hundred thirty-three million, nine hundred eighty-seven thousand, four hundred fifty-two".