698785920 has 512 divisors, whose sum is σ = 2908224000. Its totient is φ = 155271168.

The previous prime is 698785909. The next prime is 698785937. The reversal of 698785920 is 29587896.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6410826 + ... + 6410934.

It is an arithmetic number, because the mean of its divisors is an integer number (5680125).

Almost surely, 2^698785920 is an apocalyptic number.

698785920 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 698785920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1454112000).

698785920 is an abundant number, since it is smaller than the sum of its proper divisors (2209438080).

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

698785920 is a wasteful number, since it uses less digits than its factorization.

698785920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197 (or 179 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 54.

The square root of 698785920 is about 26434.5591981406. The cubic root of 698785920 is about 887.3903777847.

The spelling of 698785920 in words is "six hundred ninety-eight million, seven hundred eighty-five thousand, nine hundred twenty".