729342937 has 2 divisors, whose sum is σ = 729342938. Its totient is φ = 729342936.

The previous prime is 729342919. The next prime is 729342961. The reversal of 729342937 is 739243927.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 550559296 + 178783641 = 23464^2 + 13371^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-729342937 is a prime.

It is a super-2 number, since 2×729342937² = 1063882239503571938, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (729342967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 364671468 + 364671469.

It is an arithmetic number, because the mean of its divisors is an integer number (364671469).

Almost surely, 2^729342937 is an apocalyptic number.

It is an amenable number.

729342937 is a deficient number, since it is larger than the sum of its proper divisors (1).

729342937 is an equidigital number, since it uses as much as digits as its factorization.

729342937 is an evil number, because the sum of its binary digits is even.

The product of its digits is 571536, while the sum is 46.

The square root of 729342937 is about 27006.3499384867. The cubic root of 729342937 is about 900.1411042136.

The spelling of 729342937 in words is "seven hundred twenty-nine million, three hundred forty-two thousand, nine hundred thirty-seven".