695407680 has 392 divisors, whose sum is σ = 2718474624. Its totient is φ = 167961600.

The previous prime is 695407679. The next prime is 695407721. The reversal of 695407680 is 86704596.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 2565945 + ... + 2566215.

Almost surely, 2^695407680 is an apocalyptic number.

695407680 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 695407680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1359237312).

695407680 is an abundant number, since it is smaller than the sum of its proper divisors (2023066944).

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

695407680 is a wasteful number, since it uses less digits than its factorization.

695407680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 317 (or 292 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The square root of 695407680 is about 26370.5836112893. The cubic root of 695407680 is about 885.9580547007.

The spelling of 695407680 in words is "six hundred ninety-five million, four hundred seven thousand, six hundred eighty".