726878 has 4 divisors (see below), whose sum is σ = 1090320. Its totient is φ = 363438.

The previous prime is 726853. The next prime is 726893. The reversal of 726878 is 878627.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 878627 = 421 ⋅2087.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 181718 + ... + 181721.

It is an arithmetic number, because the mean of its divisors is an integer number (272580).

2⁷²⁶⁸⁷⁸ is an apocalyptic number.

726878 is a deficient number, since it is larger than the sum of its proper divisors (363442).

726878 is a wasteful number, since it uses less digits than its factorization.

726878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 363441.

The product of its digits is 37632, while the sum is 38.

The square root of 726878 is about 852.5714046342. The cubic root of 726878 is about 89.9125900301.

The spelling of 726878 in words is "seven hundred twenty-six thousand, eight hundred seventy-eight".