689901194 has 8 divisors (see below), whose sum is σ = 1035580260. Its totient is φ = 344707776.

The previous prime is 689901193. The next prime is 689901241. The reversal of 689901194 is 491109986.

It can be written as a sum of positive squares in 2 ways, for example, as 689745169 + 156025 = 26263^2 + 395^2 .

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

It is not an unprimeable number, because it can be changed into a prime (689901193) 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, 117839 + ... + 123554.

Almost surely, 2^689901194 is an apocalyptic number.

689901194 is a deficient number, since it is larger than the sum of its proper divisors (345679066).

689901194 is a wasteful number, since it uses less digits than its factorization.

689901194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242824.

The product of its (nonzero) digits is 139968, while the sum is 47.

The square root of 689901194 is about 26265.9702657260. The cubic root of 689901194 is about 883.6134112537.

The spelling of 689901194 in words is "six hundred eighty-nine million, nine hundred one thousand, one hundred ninety-four".