724432873 has 2 divisors, whose sum is σ = 724432874. Its totient is φ = 724432872.

The previous prime is 724432867. The next prime is 724432897. The reversal of 724432873 is 378234427.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 723986649 + 446224 = 26907^2 + 668^2 .

It is a cyclic number.

It is not a de Polignac number, because 724432873 - 2¹³ = 724424681 is a prime.

It is not a weakly prime, because it can be changed into another prime (724432823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 362216436 + 362216437.

It is an arithmetic number, because the mean of its divisors is an integer number (362216437).

Almost surely, 2^724432873 is an apocalyptic number.

It is an amenable number.

724432873 is a deficient number, since it is larger than the sum of its proper divisors (1).

724432873 is an equidigital number, since it uses as much as digits as its factorization.

724432873 is an evil number, because the sum of its binary digits is even.

The product of its digits is 225792, while the sum is 40.

The square root of 724432873 is about 26915.2906913524. The cubic root of 724432873 is about 898.1165852274.

The spelling of 724432873 in words is "seven hundred twenty-four million, four hundred thirty-two thousand, eight hundred seventy-three".