1685441465 has 8 divisors (see below), whose sum is σ = 2023211400. Its totient is φ = 1347898752.

The previous prime is 1685441437. The next prime is 1685441473. The reversal of 1685441465 is 5641445861.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 53523856 + 1631917609 = 7316^2 + 40397^2 .

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 1685441465 - 2¹⁰ = 1685440441 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40034 + ... + 70523.

It is an arithmetic number, because the mean of its divisors is an integer number (252901425).

Almost surely, 2^1685441465 is an apocalyptic number.

It is an amenable number.

1685441465 is a deficient number, since it is larger than the sum of its proper divisors (337769935).

1685441465 is a wasteful number, since it uses less digits than its factorization.

1685441465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113611.

The product of its digits is 460800, while the sum is 44.

The square root of 1685441465 is about 41054.1284769267. The cubic root of 1685441465 is about 1190.0664852339.

The spelling of 1685441465 in words is "one billion, six hundred eighty-five million, four hundred forty-one thousand, four hundred sixty-five".