728894938 has 8 divisors (see below), whose sum is σ = 1093772160. Its totient is φ = 364304220.

The previous prime is 728894927. The next prime is 728894953. The reversal of 728894938 is 839498827.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65148 + ... + 75511.

It is an arithmetic number, because the mean of its divisors is an integer number (136721520).

Almost surely, 2^728894938 is an apocalyptic number.

728894938 is a deficient number, since it is larger than the sum of its proper divisors (364877222).

728894938 is a wasteful number, since it uses less digits than its factorization.

728894938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143252.

The product of its digits is 6967296, while the sum is 58.

The square root of 728894938 is about 26998.0543373036. The cubic root of 728894938 is about 899.9567625319.

The spelling of 728894938 in words is "seven hundred twenty-eight million, eight hundred ninety-four thousand, nine hundred thirty-eight".