729992965 has 12 divisors (see below), whose sum is σ = 948560004. Its totient is φ = 539071104.

The previous prime is 729992957. The next prime is 729992969. The reversal of 729992965 is 569299927.

It can be written as a sum of positive squares in 6 ways, for example, as 74684164 + 655308801 = 8642^2 + 25599^2 .

It is not a de Polignac number, because 729992965 - 2³ = 729992957 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (729992969) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 431104 + ... + 432793.

It is an arithmetic number, because the mean of its divisors is an integer number (79046667).

Almost surely, 2^729992965 is an apocalyptic number.

It is an amenable number.

729992965 is a deficient number, since it is larger than the sum of its proper divisors (218567039).

729992965 is a wasteful number, since it uses less digits than its factorization.

729992965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 863928 (or 863915 counting only the distinct ones).

The product of its digits is 5511240, while the sum is 58.

The square root of 729992965 is about 27018.3819833831. The cubic root of 729992965 is about 900.4084421828.

The spelling of 729992965 in words is "seven hundred twenty-nine million, nine hundred ninety-two thousand, nine hundred sixty-five".