698660940 has 48 divisors (see below), whose sum is σ = 1961422848. Its totient is φ = 185817024.

The previous prime is 698660939. The next prime is 698660957. The reversal of 698660940 is 49066896.

It is a self number, because there is not a number n which added to its sum of digits gives 698660940.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7779 + ... + 38181.

It is an arithmetic number, because the mean of its divisors is an integer number (40862976).

Almost surely, 2^698660940 is an apocalyptic number.

698660940 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

698660940 is an abundant number, since it is smaller than the sum of its proper divisors (1262761908).

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

698660940 is a wasteful number, since it uses less digits than its factorization.

698660940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30798 (or 30796 counting only the distinct ones).

The product of its (nonzero) digits is 559872, while the sum is 48.

The square root of 698660940 is about 26432.1951415315. The cubic root of 698660940 is about 887.3374704689.

The spelling of 698660940 in words is "six hundred ninety-eight million, six hundred sixty thousand, nine hundred forty".