698700660 has 96 divisors (see below), whose sum is σ = 2253619200. Its totient is φ = 158433408.

The previous prime is 698700631. The next prime is 698700671. The reversal of 698700660 is 66007896.

It is a happy number.

698700660 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×698700660² = 976365224568871200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

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, 46791 + ... + 59889.

It is an arithmetic number, because the mean of its divisors is an integer number (23475200).

Almost surely, 2^698700660 is an apocalyptic number.

698700660 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 698700660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1126809600).

698700660 is an abundant number, since it is smaller than the sum of its proper divisors (1554918540).

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

698700660 is a wasteful number, since it uses less digits than its factorization.

698700660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13245 (or 13243 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 42.

The square root of 698700660 is about 26432.9464872912. The cubic root of 698700660 is about 887.3542856718.

The spelling of 698700660 in words is "six hundred ninety-eight million, seven hundred thousand, six hundred sixty".