641763324 has 60 divisors (see below), whose sum is σ = 1718651088. Its totient is φ = 208699200.

The previous prime is 641763313. The next prime is 641763337. The reversal of 641763324 is 423367146.

It is a happy number.

641763324 is a `hidden beast` number, since 6 + 4 + 17 + 633 + 2 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 10872 + ... + 37439.

Almost surely, 2^641763324 is an apocalyptic number.

It is an amenable number.

641763324 is an abundant number, since it is smaller than the sum of its proper divisors (1076887764).

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

641763324 is a wasteful number, since it uses less digits than its factorization.

641763324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48368 (or 48357 counting only the distinct ones).

The product of its digits is 72576, while the sum is 36.

The square root of 641763324 is about 25333.0480597973. The cubic root of 641763324 is about 862.5646015884.

The spelling of 641763324 in words is "six hundred forty-one million, seven hundred sixty-three thousand, three hundred twenty-four".