83650823 has 4 divisors (see below), whose sum is σ = 83671728. Its totient is φ = 83629920.

The previous prime is 83650813. The next prime is 83650843. The reversal of 83650823 is 32805638.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32805638 = 2 ⋅16402819.

It is a cyclic number.

It is not a de Polignac number, because 83650823 - 2⁴ = 83650807 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 (83650813) 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, 2363 + ... + 13148.

It is an arithmetic number, because the mean of its divisors is an integer number (20917932).

Almost surely, 2^83650823 is an apocalyptic number.

83650823 is a deficient number, since it is larger than the sum of its proper divisors (20905).

83650823 is a wasteful number, since it uses less digits than its factorization.

83650823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20904.

The product of its (nonzero) digits is 34560, while the sum is 35.

The square root of 83650823 is about 9146.0823853713. The cubic root of 83650823 is about 437.3442349434.

The spelling of 83650823 in words is "eighty-three million, six hundred fifty thousand, eight hundred twenty-three".