785998080 has 648 divisors, whose sum is σ = 3401641152. Its totient is φ = 170201088.

The previous prime is 785998079. The next prime is 785998091. The reversal of 785998080 is 80899587.

It is a tau number, because it is divible by the number of its divisors (648).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 41368311 + ... + 41368329.

Almost surely, 2^785998080 is an apocalyptic number.

785998080 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 785998080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1700820576).

785998080 is an abundant number, since it is smaller than the sum of its proper divisors (2615643072).

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

785998080 is an equidigital number, since it uses as much as digits as its factorization.

785998080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81 (or 36 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 54.

The square root of 785998080 is about 28035.6572956655. The cubic root of 785998080 is about 922.8699289710.

The spelling of 785998080 in words is "seven hundred eighty-five million, nine hundred ninety-eight thousand, eighty".