723900726 has 40 divisors (see below), whose sum is σ = 1678018320. Its totient is φ = 232978032.

The previous prime is 723900637. The next prime is 723900769. The reversal of 723900726 is 627009327.

It is a super-2 number, since 2×723900726² = 1048064522206654152, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 72346 + ... + 81741.

It is an arithmetic number, because the mean of its divisors is an integer number (41950458).

Almost surely, 2^723900726 is an apocalyptic number.

723900726 is an abundant number, since it is smaller than the sum of its proper divisors (954117594).

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

723900726 is a wasteful number, since it uses less digits than its factorization.

723900726 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154130 (or 154121 counting only the distinct ones).

The product of its (nonzero) digits is 31752, while the sum is 36.

The square root of 723900726 is about 26905.4032863289. The cubic root of 723900726 is about 897.8966213833.

The spelling of 723900726 in words is "seven hundred twenty-three million, nine hundred thousand, seven hundred twenty-six".