698327406 has 80 divisors (see below), whose sum is σ = 1882488960. Its totient is φ = 189015120.

The previous prime is 698327393. The next prime is 698327419. The reversal of 698327406 is 604723896.

It is an interprime number because it is at equal distance from previous prime (698327393) and next prime (698327419).

It is a super-2 number, since 2×698327406² = 975322331941377672, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

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 39 ways as a sum of consecutive naturals, for example, 5341 + ... + 37751.

It is an arithmetic number, because the mean of its divisors is an integer number (23531112).

Almost surely, 2^698327406 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 698327406, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (941244480).

698327406 is an abundant number, since it is smaller than the sum of its proper divisors (1184161554).

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

698327406 is a wasteful number, since it uses less digits than its factorization.

698327406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32451 (or 32442 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 45.

The square root of 698327406 is about 26425.8851507381. The cubic root of 698327406 is about 887.1962458743.

The spelling of 698327406 in words is "six hundred ninety-eight million, three hundred twenty-seven thousand, four hundred six".