789898987898 has 16 divisors (see below), whose sum is σ = 1247235792000. Its totient is φ = 374154619392.

The previous prime is 789898987883. The next prime is 789898987919. The reversal of 789898987898 is 898789898987.

It is a happy number.

789898987898 is an esthetic number in base 10, because in such base its adjacent digits differ by 1.

It is a super-2 number, since 2×789898987898² (a number of 25 digits) contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1801583 + ... + 2196701.

It is an arithmetic number, because the mean of its divisors is an integer number (77952237000).

Almost surely, 2^789898987898 is an apocalyptic number.

789898987898 is a deficient number, since it is larger than the sum of its proper divisors (457336804102).

789898987898 is a wasteful number, since it uses less digits than its factorization.

789898987898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 447749.

The product of its digits is 84276412416, while the sum is 98.

The spelling of 789898987898 in words is "seven hundred eighty-nine billion, eight hundred ninety-eight million, nine hundred eighty-seven thousand, eight hundred ninety-eight".