643052362 has 8 divisors (see below), whose sum is σ = 980391492. Its totient is φ = 316255200.

The previous prime is 643052329. The next prime is 643052363. The reversal of 643052362 is 263250346.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 604127241 + 38925121 = 24579^2 + 6239^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a zygodrome in base 3.

It is not an unprimeable number, because it can be changed into a prime (643052363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2635339 + ... + 2635582.

Almost surely, 2^643052362 is an apocalyptic number.

643052362 is a deficient number, since it is larger than the sum of its proper divisors (337339130).

643052362 is a wasteful number, since it uses less digits than its factorization.

643052362 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5270984.

The product of its (nonzero) digits is 25920, while the sum is 31.

The square root of 643052362 is about 25358.4771230451. The cubic root of 643052362 is about 863.1417276107.

The spelling of 643052362 in words is "six hundred forty-three million, fifty-two thousand, three hundred sixty-two".