689880199 has 4 divisors (see below), whose sum is σ = 696992464. Its totient is φ = 682767936.

The previous prime is 689880187. The next prime is 689880211. The reversal of 689880199 is 991088986.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 991088986 = 2 ⋅495544493.

It is an interprime number because it is at equal distance from previous prime (689880187) and next prime (689880211).

It is a cyclic number.

It is not a de Polignac number, because 689880199 - 2⁵ = 689880167 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (689880299) 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, 3555987 + ... + 3556180.

It is an arithmetic number, because the mean of its divisors is an integer number (174248116).

Almost surely, 2^689880199 is an apocalyptic number.

689880199 is a deficient number, since it is larger than the sum of its proper divisors (7112265).

689880199 is an equidigital number, since it uses as much as digits as its factorization.

689880199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7112264.

The product of its (nonzero) digits is 2239488, while the sum is 58.

The square root of 689880199 is about 26265.5706010739. The cubic root of 689880199 is about 883.6044478196.

The spelling of 689880199 in words is "six hundred eighty-nine million, eight hundred eighty thousand, one hundred ninety-nine".