723988098 has 32 divisors (see below), whose sum is σ = 1610737920. Its totient is φ = 241048080.

The previous prime is 723988091. The next prime is 723988117. The reversal of 723988098 is 890889327.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (723988091) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41836 + ... + 56552.

It is an arithmetic number, because the mean of its divisors is an integer number (50335560).

Almost surely, 2^723988098 is an apocalyptic number.

723988098 is an abundant number, since it is smaller than the sum of its proper divisors (886749822).

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

723988098 is a wasteful number, since it uses less digits than its factorization.

723988098 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15639 (or 15633 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 54.

The square root of 723988098 is about 26907.0269260652. The cubic root of 723988098 is about 897.9327441392.

The spelling of 723988098 in words is "seven hundred twenty-three million, nine hundred eighty-eight thousand, ninety-eight".