842091617 has 16 divisors (see below), whose sum is σ = 935297280. Its totient is φ = 754102272.

The previous prime is 842091559. The next prime is 842091631. The reversal of 842091617 is 716190248.

It is a cyclic number.

It is not a de Polignac number, because 842091617 - 2⁶ = 842091553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (842097617) 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, 69884 + ... + 81042.

It is an arithmetic number, because the mean of its divisors is an integer number (58456080).

Almost surely, 2^842091617 is an apocalyptic number.

It is an amenable number.

842091617 is a deficient number, since it is larger than the sum of its proper divisors (93205663).

842091617 is a wasteful number, since it uses less digits than its factorization.

842091617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11392.

The product of its (nonzero) digits is 24192, while the sum is 38.

The square root of 842091617 is about 29018.8148793158. The cubic root of 842091617 is about 944.3212905124.

The spelling of 842091617 in words is "eight hundred forty-two million, ninety-one thousand, six hundred seventeen".