83650709 has 8 divisors (see below), whose sum is σ = 85506048. Its totient is φ = 81814320.

The previous prime is 83650681. The next prime is 83650751. The reversal of 83650709 is 90705638.

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 83650709 - 2⁸ = 83650453 is a prime.

It is a super-2 number, since 2×83650709² = 13994882232405362, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83650759) 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, 4379 + ... + 13655.

It is an arithmetic number, because the mean of its divisors is an integer number (10688256).

Almost surely, 2^83650709 is an apocalyptic number.

It is an amenable number.

83650709 is a deficient number, since it is larger than the sum of its proper divisors (1855339).

83650709 is a wasteful number, since it uses less digits than its factorization.

83650709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9475.

The product of its (nonzero) digits is 45360, while the sum is 38.

The square root of 83650709 is about 9146.0761531927. The cubic root of 83650709 is about 437.3440362713.

The spelling of 83650709 in words is "eighty-three million, six hundred fifty thousand, seven hundred nine".