729695844 has 48 divisors (see below), whose sum is σ = 1894636800. Its totient is φ = 242867808.

The previous prime is 729695801. The next prime is 729695881. The reversal of 729695844 is 448596927.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72954 + ... + 82350.

It is an arithmetic number, because the mean of its divisors is an integer number (39471600).

Almost surely, 2^729695844 is an apocalyptic number.

It is an amenable number.

729695844 is an abundant number, since it is smaller than the sum of its proper divisors (1164940956).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

729695844 is a wasteful number, since it uses less digits than its factorization.

729695844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10129 (or 10121 counting only the distinct ones).

The product of its digits is 4354560, while the sum is 54.

The square root of 729695844 is about 27012.8829264853. The cubic root of 729695844 is about 900.2862644933.

The spelling of 729695844 in words is "seven hundred twenty-nine million, six hundred ninety-five thousand, eight hundred forty-four".