723740056 has 32 divisors (see below), whose sum is σ = 1462809600. Its totient is φ = 333711360.

The previous prime is 723740021. The next prime is 723740071. The reversal of 723740056 is 650047327.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 130296 + ... + 135736.

It is an arithmetic number, because the mean of its divisors is an integer number (45712800).

Almost surely, 2^723740056 is an apocalyptic number.

It is an amenable number.

723740056 is an abundant number, since it is smaller than the sum of its proper divisors (739069544).

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

723740056 is a wasteful number, since it uses less digits than its factorization.

723740056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6739 (or 6735 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 34.

The square root of 723740056 is about 26902.4172891582. The cubic root of 723740056 is about 897.8301869863.

The spelling of 723740056 in words is "seven hundred twenty-three million, seven hundred forty thousand, fifty-six".