730087705 has 4 divisors (see below), whose sum is σ = 876105252. Its totient is φ = 584070160.

The previous prime is 730087681. The next prime is 730087741. The reversal of 730087705 is 507780037.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 163123984 + 566963721 = 12772^2 + 23811^2 .

It is not a de Polignac number, because 730087705 - 2⁷ = 730087577 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73008766 + ... + 73008775.

It is an arithmetic number, because the mean of its divisors is an integer number (219026313).

Almost surely, 2^730087705 is an apocalyptic number.

It is an amenable number.

730087705 is a deficient number, since it is larger than the sum of its proper divisors (146017547).

730087705 is a wasteful number, since it uses less digits than its factorization.

730087705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146017546.

The product of its (nonzero) digits is 41160, while the sum is 37.

The square root of 730087705 is about 27020.1351773081. The cubic root of 730087705 is about 900.4473927891.

The spelling of 730087705 in words is "seven hundred thirty million, eighty-seven thousand, seven hundred five".