730736987 has 16 divisors (see below), whose sum is σ = 751205280. Its totient is φ = 710664192.

The previous prime is 730736977. The next prime is 730737031. The reversal of 730736987 is 789637037.

It is a cyclic number.

It is not a de Polignac number, because 730736987 - 2²⁰ = 729688411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (730736947) 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, 1786439 + ... + 1786847.

It is an arithmetic number, because the mean of its divisors is an integer number (46950330).

Almost surely, 2^730736987 is an apocalyptic number.

730736987 is a deficient number, since it is larger than the sum of its proper divisors (20468293).

730736987 is a wasteful number, since it uses less digits than its factorization.

730736987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 782.

The product of its (nonzero) digits is 1333584, while the sum is 50.

The square root of 730736987 is about 27032.1472879977. The cubic root of 730736987 is about 900.7142424903.

Adding to 730736987 its sum of digits (50), we get a palindrome (730737037).

The spelling of 730736987 in words is "seven hundred thirty million, seven hundred thirty-six thousand, nine hundred eighty-seven".