780472 has 48 divisors (see below), whose sum is σ = 1867320. Its totient is φ = 302400.

The previous prime is 780469. The next prime is 780499. The reversal of 780472 is 274087.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 780472.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4222 + ... + 4402.

2⁷⁸⁰⁴⁷² 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 780472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (933660).

780472 is an abundant number, since it is smaller than the sum of its proper divisors (1086848).

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

780472 is a wasteful number, since it uses less digits than its factorization.

780472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212 (or 201 counting only the distinct ones).

The product of its (nonzero) digits is 3136, while the sum is 28.

The square root of 780472 is about 883.4432635999. The cubic root of 780472 is about 92.0702047625.

The spelling of 780472 in words is "seven hundred eighty thousand, four hundred seventy-two".