780093 has 6 divisors (see below), whose sum is σ = 1126814. Its totient is φ = 520056.

The previous prime is 780061. The next prime is 780119. The reversal of 780093 is 390087.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 700569 + 79524 = 837^2 + 282^2 .

It is not a de Polignac number, because 780093 - 2⁵ = 780061 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (780193) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 43330 + ... + 43347.

2⁷⁸⁰⁰⁹³ is an apocalyptic number.

It is an amenable number.

780093 is a deficient number, since it is larger than the sum of its proper divisors (346721).

780093 is a wasteful number, since it uses less digits than its factorization.

780093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86683 (or 86680 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 780093 is about 883.2287359456. The cubic root of 780093 is about 92.0552991424.

The spelling of 780093 in words is "seven hundred eighty thousand, ninety-three".