729613904 has 10 divisors (see below), whose sum is σ = 1413626970. Its totient is φ = 364806944.

The previous prime is 729613897. The next prime is 729613909. The reversal of 729613904 is 409316927.

It can be written as a sum of positive squares in only one way, i.e., 661518400 + 68095504 = 25720^2 + 8252^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (729613909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22800419 + ... + 22800450.

It is an arithmetic number, because the mean of its divisors is an integer number (141362697).

Almost surely, 2^729613904 is an apocalyptic number.

It is an amenable number.

729613904 is a deficient number, since it is larger than the sum of its proper divisors (684013066).

729613904 is a wasteful number, since it uses less digits than its factorization.

729613904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45600877 (or 45600871 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 41.

The square root of 729613904 is about 27011.3662001758. The cubic root of 729613904 is about 900.2525645078.

The spelling of 729613904 in words is "seven hundred twenty-nine million, six hundred thirteen thousand, nine hundred four".