689435101 has 8 divisors (see below), whose sum is σ = 702846144. Its totient is φ = 676145760.

The previous prime is 689435059. The next prime is 689435161. The reversal of 689435101 is 101534986.

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

It is a cyclic number.

It is not a de Polignac number, because 689435101 - 2¹⁵ = 689402333 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 (689435161) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18945 + ... + 41686.

It is an arithmetic number, because the mean of its divisors is an integer number (87855768).

Almost surely, 2^689435101 is an apocalyptic number.

It is an amenable number.

689435101 is a deficient number, since it is larger than the sum of its proper divisors (13411043).

689435101 is a wasteful number, since it uses less digits than its factorization.

689435101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60851.

The product of its (nonzero) digits is 25920, while the sum is 37.

The square root of 689435101 is about 26257.0962027411. The cubic root of 689435101 is about 883.4143784980.

The spelling of 689435101 in words is "six hundred eighty-nine million, four hundred thirty-five thousand, one hundred one".