730576257 has 8 divisors (see below), whose sum is σ = 976757376. Its totient is φ = 485722992.

The previous prime is 730576243. The next prime is 730576283. The reversal of 730576257 is 752675037.

730576257 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 730576257 - 2⁶ = 730576193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (730576057) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 330678 + ... + 332879.

It is an arithmetic number, because the mean of its divisors is an integer number (122094672).

Almost surely, 2^730576257 is an apocalyptic number.

It is an amenable number.

730576257 is a deficient number, since it is larger than the sum of its proper divisors (246181119).

730576257 is a wasteful number, since it uses less digits than its factorization.

730576257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 663927.

The product of its (nonzero) digits is 308700, while the sum is 42.

The square root of 730576257 is about 27029.1741827234. The cubic root of 730576257 is about 900.6481984742.

The spelling of 730576257 in words is "seven hundred thirty million, five hundred seventy-six thousand, two hundred fifty-seven".