780875 has 8 divisors (see below), whose sum is σ = 974688. Its totient is φ = 624600.

The previous prime is 780869. The next prime is 780877. The reversal of 780875 is 578087.

It is not a de Polignac number, because 780875 - 2¹⁶ = 715339 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (780877) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2999 + ... + 3248.

It is an arithmetic number, because the mean of its divisors is an integer number (121836).

2⁷⁸⁰⁸⁷⁵ is an apocalyptic number.

780875 is a deficient number, since it is larger than the sum of its proper divisors (193813).

780875 is an equidigital number, since it uses as much as digits as its factorization.

780875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6262 (or 6252 counting only the distinct ones).

The product of its (nonzero) digits is 15680, while the sum is 35.

The square root of 780875 is about 883.6713189869. The cubic root of 780875 is about 92.0860489816.

The spelling of 780875 in words is "seven hundred eighty thousand, eight hundred seventy-five".