741555421 has 2 divisors, whose sum is σ = 741555422. Its totient is φ = 741555420.

The previous prime is 741555407. The next prime is 741555439. The reversal of 741555421 is 124555147.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 729756196 + 11799225 = 27014^2 + 3435^2 .

It is a cyclic number.

It is not a de Polignac number, because 741555421 - 2¹⁵ = 741522653 is a prime.

It is a super-3 number, since 3×741555421³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (741556421) 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, 370777710 + 370777711.

It is an arithmetic number, because the mean of its divisors is an integer number (370777711).

Almost surely, 2^741555421 is an apocalyptic number.

It is an amenable number.

741555421 is a deficient number, since it is larger than the sum of its proper divisors (1).

741555421 is an equidigital number, since it uses as much as digits as its factorization.

741555421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 28000, while the sum is 34.

The square root of 741555421 is about 27231.5152167484. The cubic root of 741555421 is about 905.1374580337.

The spelling of 741555421 in words is "seven hundred forty-one million, five hundred fifty-five thousand, four hundred twenty-one".