698368406 has 4 divisors (see below), whose sum is σ = 1047552612. Its totient is φ = 349184202.

The previous prime is 698368397. The next prime is 698368421. The reversal of 698368406 is 604863896.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 174592100 + ... + 174592103.

It is an arithmetic number, because the mean of its divisors is an integer number (261888153).

Almost surely, 2^698368406 is an apocalyptic number.

698368406 is a deficient number, since it is larger than the sum of its proper divisors (349184206).

698368406 is a wasteful number, since it uses less digits than its factorization.

698368406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 349184205.

The product of its (nonzero) digits is 1492992, while the sum is 50.

The square root of 698368406 is about 26426.6608938776. The cubic root of 698368406 is about 887.2136084724.

The spelling of 698368406 in words is "six hundred ninety-eight million, three hundred sixty-eight thousand, four hundred six".