698606 has 4 divisors (see below), whose sum is σ = 1047912. Its totient is φ = 349302.

The previous prime is 698591. The next prime is 698641. The reversal of 698606 is 606896.

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, 174650 + ... + 174653.

It is an arithmetic number, because the mean of its divisors is an integer number (261978).

2⁶⁹⁸⁶⁰⁶ is an apocalyptic number.

698606 is a deficient number, since it is larger than the sum of its proper divisors (349306).

698606 is a wasteful number, since it uses less digits than its factorization.

698606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 349305.

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 698606 is about 835.8265370279. The cubic root of 698606 is about 88.7314210928.

The spelling of 698606 in words is "six hundred ninety-eight thousand, six hundred six".