780064 has 24 divisors (see below), whose sum is σ = 1617840. Its totient is φ = 369216.

The previous prime is 780061. The next prime is 780119. The reversal of 780064 is 460087.

780064 = T₂₇₇ + T₂₇₈ + ... + T₂₉₅.

780064 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (780061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34 + ... + 1249.

It is an arithmetic number, because the mean of its divisors is an integer number (67410).

2⁷⁸⁰⁰⁶⁴ is an apocalyptic number.

It is an amenable number.

780064 is an abundant number, since it is smaller than the sum of its proper divisors (837776).

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

780064 is a wasteful number, since it uses less digits than its factorization.

780064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1312 (or 1304 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 780064 is about 883.2123187547. The cubic root of 780064 is about 92.0541584080.

The spelling of 780064 in words is "seven hundred eighty thousand, sixty-four".