726780 has 24 divisors (see below), whose sum is σ = 2035152. Its totient is φ = 193792.

The previous prime is 726779. The next prime is 726787. The reversal of 726780 is 87627.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a nialpdrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (726787) 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, 5997 + ... + 6116.

It is an arithmetic number, because the mean of its divisors is an integer number (84798).

2⁷²⁶⁷⁸⁰ is an apocalyptic number.

It is an amenable number.

726780 is an abundant number, since it is smaller than the sum of its proper divisors (1308372).

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

726780 is a wasteful number, since it uses less digits than its factorization.

726780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12125 (or 12123 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 30.

The square root of 726780 is about 852.5139295050. The cubic root of 726780 is about 89.9085490816.

The spelling of 726780 in words is "seven hundred twenty-six thousand, seven hundred eighty".