689114693 has 4 divisors (see below), whose sum is σ = 690799980. Its totient is φ = 687429408.

The previous prime is 689114687. The next prime is 689114729. The reversal of 689114693 is 396411986.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 530933764 + 158180929 = 23042^2 + 12577^2 .

It is a cyclic number.

It is not a de Polignac number, because 689114693 - 2¹⁰ = 689113669 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 (689114653) 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, 842030 + ... + 842847.

It is an arithmetic number, because the mean of its divisors is an integer number (172699995).

Almost surely, 2^689114693 is an apocalyptic number.

It is an amenable number.

689114693 is a deficient number, since it is larger than the sum of its proper divisors (1685287).

689114693 is a wasteful number, since it uses less digits than its factorization.

689114693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1685286.

The product of its digits is 279936, while the sum is 47.

The square root of 689114693 is about 26250.9941335562. The cubic root of 689114693 is about 883.2775046556.

The spelling of 689114693 in words is "six hundred eighty-nine million, one hundred fourteen thousand, six hundred ninety-three".