735478561 has 2 divisors, whose sum is σ = 735478562. Its totient is φ = 735478560.

The previous prime is 735478559. The next prime is 735478571. The reversal of 735478561 is 165874537.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 731377936 + 4100625 = 27044^2 + 2025^2 .

It is an emirp because it is prime and its reverse (165874537) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 735478561 - 2¹ = 735478559 is a prime.

Together with 735478559, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (735478501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 367739280 + 367739281.

It is an arithmetic number, because the mean of its divisors is an integer number (367739281).

Almost surely, 2^735478561 is an apocalyptic number.

It is an amenable number.

735478561 is a deficient number, since it is larger than the sum of its proper divisors (1).

735478561 is an equidigital number, since it uses as much as digits as its factorization.

735478561 is an evil number, because the sum of its binary digits is even.

The product of its digits is 705600, while the sum is 46.

The square root of 735478561 is about 27119.7079814662. The cubic root of 735478561 is about 902.6582155228.

The spelling of 735478561 in words is "seven hundred thirty-five million, four hundred seventy-eight thousand, five hundred sixty-one".