787320 has 80 divisors (see below), whose sum is σ = 2657160. Its totient is φ = 209952.

The previous prime is 787309. The next prime is 787331. The reversal of 787320 is 23787.

It is an interprime number because it is at equal distance from previous prime (787309) and next prime (787331).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nialpdrome in base 3.

It is a zygodrome in base 3.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 157462 + ... + 157466.

2⁷⁸⁷³²⁰ 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 787320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1328580).

787320 is an abundant number, since it is smaller than the sum of its proper divisors (1869840).

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

787320 is an frugal number, since it uses more digits than its factorization.

787320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38 (or 10 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 27.

The square root of 787320 is about 887.3105431584. The cubic root of 787320 is about 92.3387011205.

The spelling of 787320 in words is "seven hundred eighty-seven thousand, three hundred twenty".