698103640 has 128 divisors (see below), whose sum is σ = 1806053760. Its totient is φ = 240574464.

The previous prime is 698103607. The next prime is 698103641. The reversal of 698103640 is 46301896.

698103640 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 698103640.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (698103641) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1387629 + ... + 1388131.

It is an arithmetic number, because the mean of its divisors is an integer number (14109795).

Almost surely, 2^698103640 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 698103640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (903026880).

698103640 is an abundant number, since it is smaller than the sum of its proper divisors (1107950120).

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

698103640 is a wasteful number, since it uses less digits than its factorization.

698103640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 701 (or 697 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 698103640 is about 26421.6509703690. The cubic root of 698103640 is about 887.1014739179.

The spelling of 698103640 in words is "six hundred ninety-eight million, one hundred three thousand, six hundred forty".