65670085 has 16 divisors (see below), whose sum is σ = 85067136. Its totient is φ = 48379968.

The previous prime is 65670071. The next prime is 65670089. The reversal of 65670085 is 58007656.

It is not a de Polignac number, because 65670085 - 2⁵ = 65670053 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 (65670089) 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, 34632 + ... + 36478.

It is an arithmetic number, because the mean of its divisors is an integer number (5316696).

Almost surely, 2^65670085 is an apocalyptic number.

65670085 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

65670085 is a deficient number, since it is larger than the sum of its proper divisors (19397051).

65670085 is a wasteful number, since it uses less digits than its factorization.

65670085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2412.

The product of its (nonzero) digits is 50400, while the sum is 37.

The square root of 65670085 is about 8103.7081018507. The cubic root of 65670085 is about 403.4495104317.

The spelling of 65670085 in words is "sixty-five million, six hundred seventy thousand, eighty-five".