698865354 has 128 divisors (see below), whose sum is σ = 1749288960. Its totient is φ = 205027200.

The previous prime is 698865301. The next prime is 698865389. The reversal of 698865354 is 453568896.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 698865354.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3078589 + ... + 3078815.

It is an arithmetic number, because the mean of its divisors is an integer number (13666320).

Almost surely, 2^698865354 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 698865354, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (874644480).

698865354 is an abundant number, since it is smaller than the sum of its proper divisors (1050423606).

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

698865354 is a wasteful number, since it uses less digits than its factorization.

698865354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 393 (or 387 counting only the distinct ones).

The product of its digits is 6220800, while the sum is 54.

The square root of 698865354 is about 26436.0616204457. The cubic root of 698865354 is about 887.4240010039.

The spelling of 698865354 in words is "six hundred ninety-eight million, eight hundred sixty-five thousand, three hundred fifty-four".