780231 has 8 divisors (see below), whose sum is σ = 1045120. Its totient is φ = 517752.

The previous prime is 780223. The next prime is 780233. The reversal of 780231 is 132087.

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

It is not a de Polignac number, because 780231 - 2³ = 780223 is a prime.

It is a super-2 number, since 2×780231² = 1217520826722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 780198 and 780207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (780233) 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, 390 + ... + 1308.

It is an arithmetic number, because the mean of its divisors is an integer number (130640).

2⁷⁸⁰²³¹ is an apocalyptic number.

780231 is a deficient number, since it is larger than the sum of its proper divisors (264889).

780231 is a wasteful number, since it uses less digits than its factorization.

780231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1205.

The product of its (nonzero) digits is 336, while the sum is 21.

The square root of 780231 is about 883.3068549491. The cubic root of 780231 is about 92.0607270774.

The spelling of 780231 in words is "seven hundred eighty thousand, two hundred thirty-one".