730256077 has 2 divisors, whose sum is σ = 730256078. Its totient is φ = 730256076.

The previous prime is 730256069. The next prime is 730256113. The reversal of 730256077 is 770652037.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 693058276 + 37197801 = 26326^2 + 6099^2 .

It is an emirp because it is prime and its reverse (770652037) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 730256077 - 2³ = 730256069 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (730256017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 365128038 + 365128039.

It is an arithmetic number, because the mean of its divisors is an integer number (365128039).

Almost surely, 2^730256077 is an apocalyptic number.

It is an amenable number.

730256077 is a deficient number, since it is larger than the sum of its proper divisors (1).

730256077 is an equidigital number, since it uses as much as digits as its factorization.

730256077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 61740, while the sum is 37.

The square root of 730256077 is about 27023.2506741880. The cubic root of 730256077 is about 900.5166075215.

The spelling of 730256077 in words is "seven hundred thirty million, two hundred fifty-six thousand, seventy-seven".