726346 has 4 divisors (see below), whose sum is σ = 1089522. Its totient is φ = 363172.

The previous prime is 726337. The next prime is 726367. The reversal of 726346 is 643627.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 643627 = 239 ⋅2693.

It can be written as a sum of positive squares in only one way, i.e., 714025 + 12321 = 845^2 + 111^2 .

It is a nialpdrome in base 15.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 181585 + ... + 181588.

2⁷²⁶³⁴⁶ is an apocalyptic number.

726346 is a deficient number, since it is larger than the sum of its proper divisors (363176).

726346 is a wasteful number, since it uses less digits than its factorization.

726346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363175.

The product of its digits is 6048, while the sum is 28.

The square root of 726346 is about 852.2593501980. The cubic root of 726346 is about 89.8906490843.

The spelling of 726346 in words is "seven hundred twenty-six thousand, three hundred forty-six".