729752997 has 4 divisors (see below), whose sum is σ = 973004000. Its totient is φ = 486501996.

The previous prime is 729752987. The next prime is 729753001. The reversal of 729752997 is 799257927.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 729752997 - 2⁷ = 729752869 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (729752987) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 121625497 + ... + 121625502.

It is an arithmetic number, because the mean of its divisors is an integer number (243251000).

Almost surely, 2^729752997 is an apocalyptic number.

It is an amenable number.

729752997 is a deficient number, since it is larger than the sum of its proper divisors (243251003).

729752997 is a wasteful number, since it uses less digits than its factorization.

729752997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243251002.

The product of its digits is 5000940, while the sum is 57.

The square root of 729752997 is about 27013.9407898959. The cubic root of 729752997 is about 900.3097686779.

The spelling of 729752997 in words is "seven hundred twenty-nine million, seven hundred fifty-two thousand, nine hundred ninety-seven".