726783738 has 8 divisors (see below), whose sum is σ = 1453567488. Its totient is φ = 242261244.

The previous prime is 726783731. The next prime is 726783751. The reversal of 726783738 is 837387627.

It is a sphenic number, since it is the product of 3 distinct primes.

726783738 is an admirable number.

It is a super-3 number, since 3×726783738³ (a number of 28 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (726783731) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60565306 + ... + 60565317.

It is an arithmetic number, because the mean of its divisors is an integer number (181695936).

Almost surely, 2^726783738 is an apocalyptic number.

726783738 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

726783738 is a wasteful number, since it uses less digits than its factorization.

726783738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121130628.

The product of its digits is 2370816, while the sum is 51.

The square root of 726783738 is about 26958.9268703337. The cubic root of 726783738 is about 899.0870322154.

The spelling of 726783738 in words is "seven hundred twenty-six million, seven hundred eighty-three thousand, seven hundred thirty-eight".