780474 has 8 divisors (see below), whose sum is σ = 1560960. Its totient is φ = 260156.

The previous prime is 780469. The next prime is 780499. The reversal of 780474 is 474087.

It is a sphenic number, since it is the product of 3 distinct primes.

780474 is an admirable number.

It is an unprimeable number.

780474 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65034 + ... + 65045.

It is an arithmetic number, because the mean of its divisors is an integer number (195120).

2⁷⁸⁰⁴⁷⁴ is an apocalyptic number.

780474 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

780474 is a wasteful number, since it uses less digits than its factorization.

780474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130084.

The product of its (nonzero) digits is 6272, while the sum is 30.

The square root of 780474 is about 883.4443955338. Note that the first 3 decimals coincide. The cubic root of 780474 is about 92.0702834074.

The spelling of 780474 in words is "seven hundred eighty thousand, four hundred seventy-four".