800000690 has 8 divisors (see below), whose sum is σ = 1440001260. Its totient is φ = 320000272.

The previous prime is 800000659. The next prime is 800000711. The reversal of 800000690 is 96000008.

It can be written as a sum of positive squares in 2 ways, for example, as 737068201 + 62932489 = 27149^2 + 7933^2 .

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

It is a super-2 number, since 2×800000690² = 1280002208000952200, which contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 40000025 + ... + 40000044.

Almost surely, 2^800000690 is an apocalyptic number.

800000690 is a deficient number, since it is larger than the sum of its proper divisors (640000570).

800000690 is a wasteful number, since it uses less digits than its factorization.

800000690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80000076.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 800000690 is about 28284.2834450512. The cubic root of 800000690 is about 928.3180336138.

Adding to 800000690 its reverse (96000008), we get a palindrome (896000698).

The spelling of 800000690 in words is "eight hundred million, six hundred ninety", and thus it is an aban number.