724040461 has 2 divisors, whose sum is σ = 724040462. Its totient is φ = 724040460.

The previous prime is 724040441. The next prime is 724040491. The reversal of 724040461 is 164040427.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 557243236 + 166797225 = 23606^2 + 12915^2 .

It is a cyclic number.

It is not a de Polignac number, because 724040461 - 2⁹ = 724039949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (724040411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 362020230 + 362020231.

It is an arithmetic number, because the mean of its divisors is an integer number (362020231).

Almost surely, 2^724040461 is an apocalyptic number.

It is an amenable number.

724040461 is a deficient number, since it is larger than the sum of its proper divisors (1).

724040461 is an equidigital number, since it uses as much as digits as its factorization.

724040461 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5376, while the sum is 28.

The square root of 724040461 is about 26907.9999442545. Note that the first 4 decimals coincide. The cubic root of 724040461 is about 897.9543915110.

Adding to 724040461 its reverse (164040427), we get a palindrome (888080888).

The spelling of 724040461 in words is "seven hundred twenty-four million, forty thousand, four hundred sixty-one".