842820633 has 10 divisors (see below), whose sum is σ = 1259028474. Its totient is φ = 561880368.

The previous prime is 842820619. The next prime is 842820709. The reversal of 842820633 is 336028248.

It can be written as a sum of positive squares in only one way, i.e., 576576144 + 266244489 = 24012^2 + 16317^2 .

It is not a de Polignac number, because 842820633 - 2⁴ = 842820617 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (842820613) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 5202516 + ... + 5202677.

Almost surely, 2^842820633 is an apocalyptic number.

It is an amenable number.

842820633 is a deficient number, since it is larger than the sum of its proper divisors (416207841).

842820633 is a wasteful number, since it uses less digits than its factorization.

842820633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10405205 (or 10405196 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 36.

The square root of 842820633 is about 29031.3732537750. The cubic root of 842820633 is about 944.5937180212.

The spelling of 842820633 in words is "eight hundred forty-two million, eight hundred twenty thousand, six hundred thirty-three".