696577728 has 336 divisors, whose sum is σ = 2401726464. Its totient is φ = 176117760.

The previous prime is 696577711. The next prime is 696577787. The reversal of 696577728 is 827775696.

It is a tau number, because it is divible by the number of its divisors (336).

It is a super-2 number, since 2×696577728² = 970441062291283968, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5484801 + ... + 5484927.

Almost surely, 2^696577728 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 696577728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1200863232).

696577728 is an abundant number, since it is smaller than the sum of its proper divisors (1705148736).

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

696577728 is a wasteful number, since it uses less digits than its factorization.

696577728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220 (or 203 counting only the distinct ones).

The product of its digits is 8890560, while the sum is 57.

The square root of 696577728 is about 26392.7590069701. The cubic root of 696577728 is about 886.4546615320.

The spelling of 696577728 in words is "six hundred ninety-six million, five hundred seventy-seven thousand, seven hundred twenty-eight".