726949445 has 4 divisors (see below), whose sum is σ = 872339340. Its totient is φ = 581559552.

The previous prime is 726949439. The next prime is 726949459. The reversal of 726949445 is 544949627.

726949445 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Cunningham number, because it is equal to 26962²+1.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 261727684 + 465221761 = 16178^2 + 21569^2 .

It is a cyclic number.

It is not a de Polignac number, because 726949445 - 2⁶ = 726949381 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 726949393 and 726949402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72694940 + ... + 72694949.

It is an arithmetic number, because the mean of its divisors is an integer number (218084835).

Almost surely, 2^726949445 is an apocalyptic number.

It is an amenable number.

726949445 is a deficient number, since it is larger than the sum of its proper divisors (145389895).

726949445 is a wasteful number, since it uses less digits than its factorization.

726949445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145389894.

The product of its digits is 2177280, while the sum is 50.

The square root of 726949445 is about 26962.0000185446. Note that the first 4 decimals coincide. The cubic root of 726949445 is about 899.1553577643.

The spelling of 726949445 in words is "seven hundred twenty-six million, nine hundred forty-nine thousand, four hundred forty-five".