698770 has 8 divisors (see below), whose sum is σ = 1257804. Its totient is φ = 279504.

The previous prime is 698729. The next prime is 698773. The reversal of 698770 is 77896.

It can be written as a sum of positive squares in 2 ways, for example, as 594441 + 104329 = 771^2 + 323^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (698773) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34929 + ... + 34948.

2⁶⁹⁸⁷⁷⁰ is an apocalyptic number.

698770 is a deficient number, since it is larger than the sum of its proper divisors (559034).

698770 is a wasteful number, since it uses less digits than its factorization.

698770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69884.

The product of its (nonzero) digits is 21168, while the sum is 37.

The square root of 698770 is about 835.9246377515. The cubic root of 698770 is about 88.7383638781.

The spelling of 698770 in words is "six hundred ninety-eight thousand, seven hundred seventy".