83117649 has 8 divisors (see below), whose sum is σ = 111386880. Its totient is φ = 55130096.

The previous prime is 83117627. The next prime is 83117669. The reversal of 83117649 is 94671138.

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 83117649 - 2¹³ = 83109457 is a prime.

It is not an unprimeable number, because it can be changed into a prime (83117669) 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, 69729 + ... + 70910.

It is an arithmetic number, because the mean of its divisors is an integer number (13923360).

Almost surely, 2^83117649 is an apocalyptic number.

It is an amenable number.

83117649 is a deficient number, since it is larger than the sum of its proper divisors (28269231).

83117649 is a wasteful number, since it uses less digits than its factorization.

83117649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140839.

The product of its digits is 36288, while the sum is 39.

The square root of 83117649 is about 9116.8881204060. Note that the first 3 decimals coincide. The cubic root of 83117649 is about 436.4130715497.

The spelling of 83117649 in words is "eighty-three million, one hundred seventeen thousand, six hundred forty-nine".