83623802617 has 4 divisors (see below), whose sum is σ = 83639004160. Its totient is φ = 83608601076.

The previous prime is 83623802551. The next prime is 83623802623. The reversal of 83623802617 is 71620832638.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 71620832638 = 2 ⋅35810416319.

It is a cyclic number.

It is not a de Polignac number, because 83623802617 - 2⁷ = 83623802489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83623802657) 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, 7592517 + ... + 7603522.

It is an arithmetic number, because the mean of its divisors is an integer number (20909751040).

Almost surely, 2^83623802617 is an apocalyptic number.

It is an amenable number.

83623802617 is a deficient number, since it is larger than the sum of its proper divisors (15201543).

83623802617 is a wasteful number, since it uses less digits than its factorization.

83623802617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15201542.

The product of its (nonzero) digits is 580608, while the sum is 46.

The spelling of 83623802617 in words is "eighty-three billion, six hundred twenty-three million, eight hundred two thousand, six hundred seventeen".