741085661 has 2 divisors, whose sum is σ = 741085662. Its totient is φ = 741085660.

The previous prime is 741085651. The next prime is 741085673. The reversal of 741085661 is 166580147.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 399760036 + 341325625 = 19994^2 + 18475^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-741085661 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 (741085601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 370542830 + 370542831.

It is an arithmetic number, because the mean of its divisors is an integer number (370542831).

Almost surely, 2^741085661 is an apocalyptic number.

It is an amenable number.

741085661 is a deficient number, since it is larger than the sum of its proper divisors (1).

741085661 is an equidigital number, since it uses as much as digits as its factorization.

741085661 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40320, while the sum is 38.

The square root of 741085661 is about 27222.8885498949. Note that the first 3 decimals coincide. The cubic root of 741085661 is about 904.9462890501.

The spelling of 741085661 in words is "seven hundred forty-one million, eighty-five thousand, six hundred sixty-one".