789960643 has 6 divisors (see below), whose sum is σ = 792115604. Its totient is φ = 787808664.

The previous prime is 789960629. The next prime is 789960649. The reversal of 789960643 is 346069987.

It is a de Polignac number, because none of the positive numbers 2^k-789960643 is a prime.

It is a super-3 number, since 3×789960643³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (789960649) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 642153 + ... + 643381.

Almost surely, 2^789960643 is an apocalyptic number.

789960643 is a deficient number, since it is larger than the sum of its proper divisors (2154961).

789960643 is an frugal number, since it uses more digits than its factorization.

789960643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2981 (or 1752 counting only the distinct ones).

The product of its (nonzero) digits is 1959552, while the sum is 52.

The square root of 789960643 is about 28106.2385067799. The cubic root of 789960643 is about 924.4181948350.

The spelling of 789960643 in words is "seven hundred eighty-nine million, nine hundred sixty thousand, six hundred forty-three".