842667425 has 6 divisors (see below), whose sum is σ = 1044907638. Its totient is φ = 674133920.

The previous prime is 842667403. The next prime is 842667433. The reversal of 842667425 is 524766248.

It can be written as a sum of positive squares in 3 ways, for example, as 48385936 + 794281489 = 6956^2 + 28183^2 .

It is not a de Polignac number, because 842667425 - 2¹⁰ = 842666401 is a prime.

It is a super-2 number, since 2×842667425² = 1420176778312261250, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 16853324 + ... + 16853373.

It is an arithmetic number, because the mean of its divisors is an integer number (174151273).

Almost surely, 2^842667425 is an apocalyptic number.

It is an amenable number.

842667425 is a deficient number, since it is larger than the sum of its proper divisors (202240213).

842667425 is a wasteful number, since it uses less digits than its factorization.

842667425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33706707 (or 33706702 counting only the distinct ones).

The product of its digits is 645120, while the sum is 44.

The square root of 842667425 is about 29028.7344712097. The cubic root of 842667425 is about 944.5364784463.

The spelling of 842667425 in words is "eight hundred forty-two million, six hundred sixty-seven thousand, four hundred twenty-five".