842938315 has 4 divisors (see below), whose sum is σ = 1011525984. Its totient is φ = 674350648.

The previous prime is 842938309. The next prime is 842938333. The reversal of 842938315 is 513839248.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-842938315 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84293827 + ... + 84293836.

It is an arithmetic number, because the mean of its divisors is an integer number (252881496).

Almost surely, 2^842938315 is an apocalyptic number.

842938315 is a deficient number, since it is larger than the sum of its proper divisors (168587669).

842938315 is a wasteful number, since it uses less digits than its factorization.

842938315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168587668.

The product of its digits is 207360, while the sum is 43.

The square root of 842938315 is about 29033.3999903559. The cubic root of 842938315 is about 944.6376801250.

The spelling of 842938315 in words is "eight hundred forty-two million, nine hundred thirty-eight thousand, three hundred fifteen".