752274721 has 16 divisors (see below), whose sum is σ = 841236480. Its totient is φ = 666928080.

The previous prime is 752274707. The next prime is 752274773. The reversal of 752274721 is 127472257.

752274721 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 752274721 - 2¹⁵ = 752241953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (752274781) 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, 77860 + ... + 86986.

It is an arithmetic number, because the mean of its divisors is an integer number (52577280).

Almost surely, 2^752274721 is an apocalyptic number.

It is an amenable number.

752274721 is a deficient number, since it is larger than the sum of its proper divisors (88961759).

752274721 is a wasteful number, since it uses less digits than its factorization.

752274721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9324.

The product of its digits is 54880, while the sum is 37.

The square root of 752274721 is about 27427.6269662543. The cubic root of 752274721 is about 909.4779120921.

The spelling of 752274721 in words is "seven hundred fifty-two million, two hundred seventy-four thousand, seven hundred twenty-one".