696591840 has 192 divisors, whose sum is σ = 2559513600. Its totient is φ = 159183360.

The previous prime is 696591827. The next prime is 696591899. The reversal of 696591840 is 48195696.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 696591840.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 162525 + ... + 166755.

It is an arithmetic number, because the mean of its divisors is an integer number (13330800).

Almost surely, 2^696591840 is an apocalyptic number.

696591840 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 696591840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1279756800).

696591840 is an abundant number, since it is smaller than the sum of its proper divisors (1862921760).

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

696591840 is a wasteful number, since it uses less digits than its factorization.

696591840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4270 (or 4248 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 48.

The square root of 696591840 is about 26393.0263516710. The cubic root of 696591840 is about 886.4606477334.

The spelling of 696591840 in words is "six hundred ninety-six million, five hundred ninety-one thousand, eight hundred forty".