842953385 has 4 divisors (see below), whose sum is σ = 1011544068. Its totient is φ = 674362704.

The previous prime is 842953369. The next prime is 842953387. The reversal of 842953385 is 583359248.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 132411049 + 710542336 = 11507^2 + 26656^2 .

It is a cyclic number.

It is not a de Polignac number, because 842953385 - 2⁴ = 842953369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (842953387) 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, 84295334 + ... + 84295343.

It is an arithmetic number, because the mean of its divisors is an integer number (252886017).

Almost surely, 2^842953385 is an apocalyptic number.

It is an amenable number.

842953385 is a deficient number, since it is larger than the sum of its proper divisors (168590683).

842953385 is a wasteful number, since it uses less digits than its factorization.

842953385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168590682.

The product of its digits is 1036800, while the sum is 47.

The square root of 842953385 is about 29033.6595178768. The cubic root of 842953385 is about 944.6433094832.

The spelling of 842953385 in words is "eight hundred forty-two million, nine hundred fifty-three thousand, three hundred eighty-five".