695623680 has 448 divisors, whose sum is σ = 2689433280. Its totient is φ = 169869312.

The previous prime is 695623679. The next prime is 695623711. The reversal of 695623680 is 86326596.

It is a happy number.

695623680 is a `hidden beast` number, since 6 + 9 + 562 + 3 + 6 + 80 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

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, 18800622 + ... + 18800658.

Almost surely, 2^695623680 is an apocalyptic number.

695623680 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 695623680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1344716640).

695623680 is an abundant number, since it is smaller than the sum of its proper divisors (1993809600).

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

695623680 is a wasteful number, since it uses less digits than its factorization.

695623680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94 (or 64 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 45.

The square root of 695623680 is about 26374.6787658163. The cubic root of 695623680 is about 886.0497741028.

The spelling of 695623680 in words is "six hundred ninety-five million, six hundred twenty-three thousand, six hundred eighty".