730917646 has 4 divisors (see below), whose sum is σ = 1096376472. Its totient is φ = 365458822.

The previous prime is 730917643. The next prime is 730917689. The reversal of 730917646 is 646719037.

730917646 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 646719037 = 23 ⋅28118219.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (730917643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 182729410 + ... + 182729413.

It is an arithmetic number, because the mean of its divisors is an integer number (274094118).

Almost surely, 2^730917646 is an apocalyptic number.

730917646 is a deficient number, since it is larger than the sum of its proper divisors (365458826).

730917646 is a wasteful number, since it uses less digits than its factorization.

730917646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365458825.

The product of its (nonzero) digits is 190512, while the sum is 43.

The square root of 730917646 is about 27035.4886399340. The cubic root of 730917646 is about 900.7884637806.

The spelling of 730917646 in words is "seven hundred thirty million, nine hundred seventeen thousand, six hundred forty-six".