741556421 has 2 divisors, whose sum is σ = 741556422. Its totient is φ = 741556420.

The previous prime is 741556397. The next prime is 741556441. The reversal of 741556421 is 124655147.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 741472900 + 83521 = 27230^2 + 289^2 .

It is a cyclic number.

It is not a de Polignac number, because 741556421 - 2⁶ = 741556357 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (741556441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 370778210 + 370778211.

It is an arithmetic number, because the mean of its divisors is an integer number (370778211).

Almost surely, 2^741556421 is an apocalyptic number.

It is an amenable number.

741556421 is a deficient number, since it is larger than the sum of its proper divisors (1).

741556421 is an equidigital number, since it uses as much as digits as its factorization.

741556421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 33600, while the sum is 35.

The square root of 741556421 is about 27231.5335778211. The cubic root of 741556421 is about 905.1378648979.

It can be divided in two parts, 7415 and 56421, that added together give a palindrome (63836).

The spelling of 741556421 in words is "seven hundred forty-one million, five hundred fifty-six thousand, four hundred twenty-one".