721548010 has 16 divisors (see below), whose sum is σ = 1300430376. Its totient is φ = 288253888.

The previous prime is 721548007. The next prime is 721548013. The reversal of 721548010 is 10845127.

721548010 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (721548007) and next prime (721548013).

It can be written as a sum of positive squares in 4 ways, for example, as 339775489 + 381772521 = 18433^2 + 19539^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 721548010.

It is not an unprimeable number, because it can be changed into a prime (721548013) 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, 37297 + ... + 53236.

Almost surely, 2^721548010 is an apocalyptic number.

721548010 is a deficient number, since it is larger than the sum of its proper divisors (578882366).

721548010 is a wasteful number, since it uses less digits than its factorization.

721548010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91337.

The product of its (nonzero) digits is 2240, while the sum is 28.

The square root of 721548010 is about 26861.6457053547. The cubic root of 721548010 is about 896.9228283445.

It can be divided in two parts, 7215 and 48010, that added together give a square (55225 = 235²).

The spelling of 721548010 in words is "seven hundred twenty-one million, five hundred forty-eight thousand, ten".