723898028 has 12 divisors (see below), whose sum is σ = 1447796112. Its totient is φ = 310242000.

The previous prime is 723898013. The next prime is 723898033. The reversal of 723898028 is 820898327.

723898028 is an admirable 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, 12926723 + ... + 12926778.

It is an arithmetic number, because the mean of its divisors is an integer number (120649676).

Almost surely, 2^723898028 is an apocalyptic number.

It is an amenable number.

723898028 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.

723898028 is a wasteful number, since it uses less digits than its factorization.

723898028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25853512 (or 25853510 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 47.

The square root of 723898028 is about 26905.3531476545. The cubic root of 723898028 is about 897.8955058859.

The spelling of 723898028 in words is "seven hundred twenty-three million, eight hundred ninety-eight thousand, twenty-eight".