730787505 has 16 divisors (see below), whose sum is σ = 1336297344. Its totient is φ = 334074240.

The previous prime is 730787471. The next prime is 730787507. The reversal of 730787505 is 505787037.

It is not a de Polignac number, because 730787505 - 2¹¹ = 730785457 is a prime.

It is not an unprimeable number, because it can be changed into a prime (730787507) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3479836 + ... + 3480045.

It is an arithmetic number, because the mean of its divisors is an integer number (83518584).

Almost surely, 2^730787505 is an apocalyptic number.

It is an amenable number.

730787505 is a deficient number, since it is larger than the sum of its proper divisors (605509839).

730787505 is a wasteful number, since it uses less digits than its factorization.

730787505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6959896.

The product of its (nonzero) digits is 205800, while the sum is 42.

The square root of 730787505 is about 27033.0816778258. The cubic root of 730787505 is about 900.7349983547.

The spelling of 730787505 in words is "seven hundred thirty million, seven hundred eighty-seven thousand, five hundred five".