726664235 has 16 divisors (see below), whose sum is σ = 1007227872. Its totient is φ = 497395200.

The previous prime is 726664217. The next prime is 726664249. The reversal of 726664235 is 532466627.

It is not a de Polignac number, because 726664235 - 2⁶ = 726664171 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 726664192 and 726664201.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 387656 + ... + 389525.

It is an arithmetic number, because the mean of its divisors is an integer number (62951742).

Almost surely, 2^726664235 is an apocalyptic number.

726664235 is a deficient number, since it is larger than the sum of its proper divisors (280563637).

726664235 is a wasteful number, since it uses less digits than its factorization.

726664235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 777214.

The product of its digits is 362880, while the sum is 41.

The square root of 726664235 is about 26956.7103890664. The cubic root of 726664235 is about 899.0377513994.

The spelling of 726664235 in words is "seven hundred twenty-six million, six hundred sixty-four thousand, two hundred thirty-five".