729760822 has 36 divisors (see below), whose sum is σ = 1301413284. Its totient is φ = 306009480.

The previous prime is 729760807. The next prime is 729760831. The reversal of 729760822 is 228067927.

It is a happy number.

It is a super-2 number, since 2×729760822² = 1065101714652231368, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 214797 + ... + 218167.

It is an arithmetic number, because the mean of its divisors is an integer number (36150369).

Almost surely, 2^729760822 is an apocalyptic number.

729760822 is a deficient number, since it is larger than the sum of its proper divisors (571652462).

729760822 is a wasteful number, since it uses less digits than its factorization.

729760822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3481 (or 3427 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 43.

The square root of 729760822 is about 27014.0856221342. The cubic root of 729760822 is about 900.3129866155.

The spelling of 729760822 in words is "seven hundred twenty-nine million, seven hundred sixty thousand, eight hundred twenty-two".