7962842 has 4 divisors (see below), whose sum is σ = 11944266. Its totient is φ = 3981420.

The previous prime is 7962811. The next prime is 7962847. The reversal of 7962842 is 2482697.

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

It can be written as a sum of positive squares in only one way, i.e., 7890481 + 72361 = 2809^2 + 269^2 .

It is a d-powerful number, because it can be written as 7² + 9⁷ + 6⁴ + 2⁵ + 8⁵ + 4¹⁰ + 2²¹ .

It is a junction number, because it is equal to n+sod(n) for n = 7962796 and 7962805.

It is not an unprimeable number, because it can be changed into a prime (7962847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1990709 + ... + 1990712.

Almost surely, 2^7962842 is an apocalyptic number.

7962842 is a deficient number, since it is larger than the sum of its proper divisors (3981424).

7962842 is a wasteful number, since it uses less digits than its factorization.

7962842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3981423.

The product of its digits is 48384, while the sum is 38.

The square root of 7962842 is about 2821.8508110813. The cubic root of 7962842 is about 199.6898693435.

The spelling of 7962842 in words is "seven million, nine hundred sixty-two thousand, eight hundred forty-two".