721100248 has 32 divisors (see below), whose sum is σ = 1476034560. Its totient is φ = 327538080.

The previous prime is 721100243. The next prime is 721100267. The reversal of 721100248 is 842001127.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (721100243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 199465 + ... + 203047.

It is an arithmetic number, because the mean of its divisors is an integer number (46126080).

Almost surely, 2^721100248 is an apocalyptic number.

It is an amenable number.

721100248 is an abundant number, since it is smaller than the sum of its proper divisors (754934312).

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

721100248 is a wasteful number, since it uses less digits than its factorization.

721100248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5887 (or 5883 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 25.

The square root of 721100248 is about 26853.3098146206. The cubic root of 721100248 is about 896.7372592365.

The spelling of 721100248 in words is "seven hundred twenty-one million, one hundred thousand, two hundred forty-eight".