698315904 has 384 divisors, whose sum is σ = 2463814080. Its totient is φ = 194088960.

The previous prime is 698315887. The next prime is 698315909. The reversal of 698315904 is 409513896.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (384).

It is a self number, because there is not a number n which added to its sum of digits gives 698315904.

It is not an unprimeable number, because it can be changed into a prime (698315909) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4447794 + ... + 4447950.

Almost surely, 2^698315904 is an apocalyptic number.

698315904 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 698315904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1231907040).

698315904 is an abundant number, since it is smaller than the sum of its proper divisors (1765498176).

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

698315904 is a wasteful number, since it uses less digits than its factorization.

698315904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210 (or 186 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 45.

The square root of 698315904 is about 26425.6675223163. The cubic root of 698315904 is about 887.1913749083.

The spelling of 698315904 in words is "six hundred ninety-eight million, three hundred fifteen thousand, nine hundred four".