726998 has 16 divisors (see below), whose sum is σ = 1138320. Its totient is φ = 348000.

The previous prime is 726991. The next prime is 727003. The reversal of 726998 is 899627.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (726991) 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, 7148 + ... + 7248.

It is an arithmetic number, because the mean of its divisors is an integer number (71145).

2⁷²⁶⁹⁹⁸ is an apocalyptic number.

726998 is a deficient number, since it is larger than the sum of its proper divisors (411322).

726998 is a wasteful number, since it uses less digits than its factorization.

726998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223.

The product of its digits is 54432, while the sum is 41.

The square root of 726998 is about 852.6417770670. The cubic root of 726998 is about 89.9175376358.

The spelling of 726998 in words is "seven hundred twenty-six thousand, nine hundred ninety-eight".