729969937 has 2 divisors, whose sum is σ = 729969938. Its totient is φ = 729969936.

The previous prime is 729969931. The next prime is 729969959. The reversal of 729969937 is 739969927.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 728784016 + 1185921 = 26996^2 + 1089^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-729969937 is a prime.

It is a super-2 number, since 2×729969937² = 1065712217847567938, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (729969931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 364984968 + 364984969.

It is an arithmetic number, because the mean of its divisors is an integer number (364984969).

Almost surely, 2^729969937 is an apocalyptic number.

It is an amenable number.

729969937 is a deficient number, since it is larger than the sum of its proper divisors (1).

729969937 is an equidigital number, since it uses as much as digits as its factorization.

729969937 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11573604, while the sum is 61.

The square root of 729969937 is about 27017.9558257097. The cubic root of 729969937 is about 900.3989741356.

The spelling of 729969937 in words is "seven hundred twenty-nine million, nine hundred sixty-nine thousand, nine hundred thirty-seven".