704377728 has 256 divisors, whose sum is σ = 2320704000. Its totient is φ = 209018880.

The previous prime is 704377721. The next prime is 704377733. The reversal of 704377728 is 827773407.

It is a super-2 number, since 2×704377728² = 992295967404883968, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (704377721) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 1115973 + ... + 1116603.

It is an arithmetic number, because the mean of its divisors is an integer number (9065250).

Almost surely, 2^704377728 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 704377728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1160352000).

704377728 is an abundant number, since it is smaller than the sum of its proper divisors (1616326272).

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

704377728 is a wasteful number, since it uses less digits than its factorization.

704377728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 690 (or 672 counting only the distinct ones).

The product of its (nonzero) digits is 460992, while the sum is 45.

The square root of 704377728 is about 26540.1154481287. The cubic root of 704377728 is about 889.7511099688.

The spelling of 704377728 in words is "seven hundred four million, three hundred seventy-seven thousand, seven hundred twenty-eight".