734590861 has 2 divisors, whose sum is σ = 734590862. Its totient is φ = 734590860.

The previous prime is 734590819. The next prime is 734590867. The reversal of 734590861 is 168095437.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 665949636 + 68641225 = 25806^2 + 8285^2 .

It is an emirp because it is prime and its reverse (168095437) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 734590861 - 2¹⁹ = 734066573 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (734590867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 367295430 + 367295431.

It is an arithmetic number, because the mean of its divisors is an integer number (367295431).

Almost surely, 2^734590861 is an apocalyptic number.

It is an amenable number.

734590861 is a deficient number, since it is larger than the sum of its proper divisors (1).

734590861 is an equidigital number, since it uses as much as digits as its factorization.

734590861 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 181440, while the sum is 43.

The square root of 734590861 is about 27103.3367134012. The cubic root of 734590861 is about 902.2949090835.

The spelling of 734590861 in words is "seven hundred thirty-four million, five hundred ninety thousand, eight hundred sixty-one".