789780000 has 120 divisors (see below), whose sum is σ = 2590833168. Its totient is φ = 210592000.

The previous prime is 789779971. The next prime is 789780029. The reversal of 789780000 is 87987.

It is an interprime number because it is at equal distance from previous prime (789779971) and next prime (789780029).

It is a tau number, because it is divible by the number of its divisors (120).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 53419 + ... + 66581.

Almost surely, 2^789780000 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 789780000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1295416584).

789780000 is an abundant number, since it is smaller than the sum of its proper divisors (1801053168).

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

789780000 is a wasteful number, since it uses less digits than its factorization.

789780000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13196 (or 13173 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 39.

The square root of 789780000 is about 28103.0247482366. The cubic root of 789780000 is about 924.3477261740.

The spelling of 789780000 in words is "seven hundred eighty-nine million, seven hundred eighty thousand".