686141469 has 16 divisors (see below), whose sum is σ = 1094699200. Its totient is φ = 422240688.

The previous prime is 686141447. The next prime is 686141473. The reversal of 686141469 is 964141686.

It is not a de Polignac number, because 686141469 - 2¹⁶ = 686075933 is a prime.

It is a super-2 number, since 2×686141469² = 941580230962955922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (686141419) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 977059 + ... + 977760.

It is an arithmetic number, because the mean of its divisors is an integer number (68418700).

Almost surely, 2^686141469 is an apocalyptic number.

It is an amenable number.

686141469 is a deficient number, since it is larger than the sum of its proper divisors (408557731).

686141469 is a wasteful number, since it uses less digits than its factorization.

686141469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1954841 (or 1954835 counting only the distinct ones).

The product of its digits is 248832, while the sum is 45.

The square root of 686141469 is about 26194.3022239570. The cubic root of 686141469 is about 882.0053565319.

The spelling of 686141469 in words is "six hundred eighty-six million, one hundred forty-one thousand, four hundred sixty-nine".