842152673 has 4 divisors (see below), whose sum is σ = 842231808. Its totient is φ = 842073540.

The previous prime is 842152667. The next prime is 842152679. The reversal of 842152673 is 376251248.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is an interprime number because it is at equal distance from previous prime (842152667) and next prime (842152679).

It is a cyclic number.

It is not a de Polignac number, because 842152673 - 2⁴ = 842152657 is a prime.

It is a super-2 number, since 2×842152673² = 1418442249282089858, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (842152679) 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, 20561 + ... + 45902.

It is an arithmetic number, because the mean of its divisors is an integer number (210557952).

Almost surely, 2^842152673 is an apocalyptic number.

It is an amenable number.

842152673 is a deficient number, since it is larger than the sum of its proper divisors (79135).

842152673 is a wasteful number, since it uses less digits than its factorization.

842152673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79134.

The product of its digits is 80640, while the sum is 38.

The square root of 842152673 is about 29019.8668673721. The cubic root of 842152673 is about 944.3441126877.

The spelling of 842152673 in words is "eight hundred forty-two million, one hundred fifty-two thousand, six hundred seventy-three".