698399744 has 132 divisors (see below), whose sum is σ = 1680177600. Its totient is φ = 289013760.

The previous prime is 698399731. The next prime is 698399771. The reversal of 698399744 is 447993896.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1555232 + ... + 1555680.

Almost surely, 2^698399744 is an apocalyptic number.

698399744 is a gapful number since it is divisible by the number (64) 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 698399744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (840088800).

698399744 is an abundant number, since it is smaller than the sum of its proper divisors (981777856).

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

698399744 is a wasteful number, since it uses less digits than its factorization.

698399744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 514 (or 489 counting only the distinct ones).

The product of its digits is 11757312, while the sum is 59.

The square root of 698399744 is about 26427.2538111700. The cubic root of 698399744 is about 887.2268789678.

The spelling of 698399744 in words is "six hundred ninety-eight million, three hundred ninety-nine thousand, seven hundred forty-four".