732619421 has 2 divisors, whose sum is σ = 732619422. Its totient is φ = 732619420.

The previous prime is 732619417. The next prime is 732619427. The reversal of 732619421 is 124916237.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 649536196 + 83083225 = 25486^2 + 9115^2 .

It is a cyclic number.

It is not a de Polignac number, because 732619421 - 2² = 732619417 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (732619427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 366309710 + 366309711.

It is an arithmetic number, because the mean of its divisors is an integer number (366309711).

Almost surely, 2^732619421 is an apocalyptic number.

It is an amenable number.

732619421 is a deficient number, since it is larger than the sum of its proper divisors (1).

732619421 is an equidigital number, since it uses as much as digits as its factorization.

732619421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18144, while the sum is 35.

The square root of 732619421 is about 27066.9433257618. The cubic root of 732619421 is about 901.4870154041.

The spelling of 732619421 in words is "seven hundred thirty-two million, six hundred nineteen thousand, four hundred twenty-one".