724357973 has 2 divisors, whose sum is σ = 724357974. Its totient is φ = 724357972.

The previous prime is 724357967. The next prime is 724357993. The reversal of 724357973 is 379753427.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 608214244 + 116143729 = 24662^2 + 10777^2 .

It is a cyclic number.

It is not a de Polignac number, because 724357973 - 2¹⁴ = 724341589 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (724357993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 362178986 + 362178987.

It is an arithmetic number, because the mean of its divisors is an integer number (362178987).

Almost surely, 2^724357973 is an apocalyptic number.

It is an amenable number.

724357973 is a deficient number, since it is larger than the sum of its proper divisors (1).

724357973 is an equidigital number, since it uses as much as digits as its factorization.

724357973 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1111320, while the sum is 47.

The square root of 724357973 is about 26913.8992529882. The cubic root of 724357973 is about 898.0856317036.

It can be divided in two parts, 72435 and 7973, that added together give a palindrome (80408).

The spelling of 724357973 in words is "seven hundred twenty-four million, three hundred fifty-seven thousand, nine hundred seventy-three".