789242987 has 16 divisors (see below), whose sum is σ = 861084000. Its totient is φ = 719040000.

The previous prime is 789242983. The next prime is 789243019.

789242987 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 789242987 - 2² = 789242983 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (789242983) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 525764 + ... + 527262.

It is an arithmetic number, because the mean of its divisors is an integer number (53817750).

Almost surely, 2^789242987 is an apocalyptic number.

789242987 is a deficient number, since it is larger than the sum of its proper divisors (71841013).

789242987 is a wasteful number, since it uses less digits than its factorization.

789242987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2014.

The product of its digits is 4064256, while the sum is 56.

The square root of 789242987 is about 28093.4687605500. The cubic root of 789242987 is about 924.1381744446.

The spelling of 789242987 in words is "seven hundred eighty-nine million, two hundred forty-two thousand, nine hundred eighty-seven".