643462060 has 24 divisors (see below), whose sum is σ = 1359567216. Its totient is φ = 255804480.

The previous prime is 643461991. The next prime is 643462069. The reversal of 643462060 is 60264346.

It is not an unprimeable number, because it can be changed into a prime (643462069) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95431 + ... + 101950.

It is an arithmetic number, because the mean of its divisors is an integer number (56648634).

Almost surely, 2^643462060 is an apocalyptic number.

It is an amenable number.

643462060 is an abundant number, since it is smaller than the sum of its proper divisors (716105156).

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

643462060 is a wasteful number, since it uses less digits than its factorization.

643462060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197553 (or 197551 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 31.

The square root of 643462060 is about 25366.5539638320. The cubic root of 643462060 is about 863.3249954059.

The spelling of 643462060 in words is "six hundred forty-three million, four hundred sixty-two thousand, sixty".