7841906 has 8 divisors (see below), whose sum is σ = 12049884. Its totient is φ = 3825280.

The previous prime is 7841893. The next prime is 7841921. The reversal of 7841906 is 6091487.

It can be written as a sum of positive squares in 2 ways, for example, as 6175225 + 1666681 = 2485^2 + 1291^2 .

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

It is a super-2 number, since 2×7841906² = 122990979425672, which contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 47735 + ... + 47898.

Almost surely, 2^7841906 is an apocalyptic number.

7841906 is a deficient number, since it is larger than the sum of its proper divisors (4207978).

7841906 is a wasteful number, since it uses less digits than its factorization.

7841906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95676.

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 7841906 is about 2800.3403364591. The cubic root of 7841906 is about 198.6737750761.

The spelling of 7841906 in words is "seven million, eight hundred forty-one thousand, nine hundred six".