698379264 has 198 divisors, whose sum is σ = 2226702036. Its totient is φ = 209080320.

The previous prime is 698379259. The next prime is 698379287. The reversal of 698379264 is 462973896.

It is a happy number.

698379264 is a `hidden beast` number, since 6 + 9 + 8 + 379 + 264 = 666.

It is a tau number, because it is divible by the number of its divisors (198).

It is a self number, because there is not a number n which added to its sum of digits gives 698379264.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 8414167 + ... + 8414249.

Almost surely, 2^698379264 is an apocalyptic number.

698379264 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 698379264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1113351018).

698379264 is an abundant number, since it is smaller than the sum of its proper divisors (1528322772).

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

698379264 is a wasteful number, since it uses less digits than its factorization.

698379264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203 (or 99 counting only the distinct ones).

The product of its digits is 3919104, while the sum is 54.

The square root of 698379264 is about 26426.8663295518. The cubic root of 698379264 is about 887.2182064827.

The spelling of 698379264 in words is "six hundred ninety-eight million, three hundred seventy-nine thousand, two hundred sixty-four".