730509075 has 18 divisors (see below), whose sum is σ = 1308423324. Its totient is φ = 389604720.

The previous prime is 730509047. The next prime is 730509077. The reversal of 730509075 is 570905037.

It is not a de Polignac number, because 730509075 - 2⁶ = 730509011 is a prime.

It is not an unprimeable number, because it can be changed into a prime (730509077) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1623129 + ... + 1623578.

Almost surely, 2^730509075 is an apocalyptic number.

730509075 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

730509075 is a deficient number, since it is larger than the sum of its proper divisors (577914249).

730509075 is a wasteful number, since it uses less digits than its factorization.

730509075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3246723 (or 3246715 counting only the distinct ones).

The product of its (nonzero) digits is 33075, while the sum is 36.

The square root of 730509075 is about 27027.9313858830. The cubic root of 730509075 is about 900.6205904951.

The spelling of 730509075 in words is "seven hundred thirty million, five hundred nine thousand, seventy-five".