842907 has 8 divisors (see below), whose sum is σ = 1210384. Its totient is φ = 518688.

The previous prime is 842887. The next prime is 842923. The reversal of 842907 is 709248.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 842907 - 2¹¹ = 840859 is a prime.

It is a Duffinian number.

842907 is a lucky number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 842907.

It is not an unprimeable number, because it can be changed into a prime (842957) 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, 10768 + ... + 10845.

It is an arithmetic number, because the mean of its divisors is an integer number (151298).

2⁸⁴²⁹⁰⁷ is an apocalyptic number.

842907 is a deficient number, since it is larger than the sum of its proper divisors (367477).

842907 is a wasteful number, since it uses less digits than its factorization.

842907 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21629.

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 842907 is about 918.0996677921. The cubic root of 842907 is about 94.4625982276.

The spelling of 842907 in words is "eight hundred forty-two thousand, nine hundred seven".