741455621 has 2 divisors, whose sum is σ = 741455622. Its totient is φ = 741455620.

The previous prime is 741455609. The next prime is 741455641. The reversal of 741455621 is 126554147.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 403447396 + 338008225 = 20086^2 + 18385^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-741455621 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 (741455641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 370727810 + 370727811.

It is an arithmetic number, because the mean of its divisors is an integer number (370727811).

Almost surely, 2^741455621 is an apocalyptic number.

It is an amenable number.

741455621 is a deficient number, since it is larger than the sum of its proper divisors (1).

741455621 is an equidigital number, since it uses as much as digits as its factorization.

741455621 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 741455621 is about 27229.6827194149. The cubic root of 741455621 is about 905.0968511470.

The spelling of 741455621 in words is "seven hundred forty-one million, four hundred fifty-five thousand, six hundred twenty-one".