730767881 has 2 divisors, whose sum is σ = 730767882. Its totient is φ = 730767880.

The previous prime is 730767859. The next prime is 730767883. The reversal of 730767881 is 188767037.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 603439225 + 127328656 = 24565^2 + 11284^2 .

It is an emirp because it is prime and its reverse (188767037) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-730767881 is a prime.

It is a super-2 number, since 2×730767881² = 1068043391802460322, which contains 22 as substring.

Together with 730767883, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (730767883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 365383940 + 365383941.

It is an arithmetic number, because the mean of its divisors is an integer number (365383941).

Almost surely, 2^730767881 is an apocalyptic number.

It is an amenable number.

730767881 is a deficient number, since it is larger than the sum of its proper divisors (1).

730767881 is an equidigital number, since it uses as much as digits as its factorization.

730767881 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 395136, while the sum is 47.

The square root of 730767881 is about 27032.7187127007. The cubic root of 730767881 is about 900.7269357366.

The spelling of 730767881 in words is "seven hundred thirty million, seven hundred sixty-seven thousand, eight hundred eighty-one".