724534273 has 2 divisors, whose sum is σ = 724534274. Its totient is φ = 724534272.

The previous prime is 724534241. The next prime is 724534297. The reversal of 724534273 is 372435427.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 504990784 + 219543489 = 22472^2 + 14817^2 .

It is a cyclic number.

It is not a de Polignac number, because 724534273 - 2⁵ = 724534241 is a prime.

It is not a weakly prime, because it can be changed into another prime (724534073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 362267136 + 362267137.

It is an arithmetic number, because the mean of its divisors is an integer number (362267137).

Almost surely, 2^724534273 is an apocalyptic number.

It is an amenable number.

724534273 is a deficient number, since it is larger than the sum of its proper divisors (1).

724534273 is an equidigital number, since it uses as much as digits as its factorization.

724534273 is an evil number, because the sum of its binary digits is even.

The product of its digits is 141120, while the sum is 37.

The square root of 724534273 is about 26917.1743130664. The cubic root of 724534273 is about 898.1584868659.

The spelling of 724534273 in words is "seven hundred twenty-four million, five hundred thirty-four thousand, two hundred seventy-three".