724312403 has 2 divisors, whose sum is σ = 724312404. Its totient is φ = 724312402.

The previous prime is 724312367. The next prime is 724312409. The reversal of 724312403 is 304213427.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 724312403 - 2¹⁸ = 724050259 is a prime.

It is not a weakly prime, because it can be changed into another prime (724312409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 362156201 + 362156202.

It is an arithmetic number, because the mean of its divisors is an integer number (362156202).

Almost surely, 2^724312403 is an apocalyptic number.

724312403 is a deficient number, since it is larger than the sum of its proper divisors (1).

724312403 is an equidigital number, since it uses as much as digits as its factorization.

724312403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4032, while the sum is 26.

The square root of 724312403 is about 26913.0526510836. The cubic root of 724312403 is about 898.0667981885.

The spelling of 724312403 in words is "seven hundred twenty-four million, three hundred twelve thousand, four hundred three".