7842011 has 4 divisors (see below), whose sum is σ = 8182992. Its totient is φ = 7501032.

The previous prime is 7841989. The next prime is 7842013. The reversal of 7842011 is 1102487.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1102487 = 127 ⋅8681.

It is a cyclic number.

It is not a de Polignac number, because 7842011 - 2¹⁸ = 7579867 is a prime.

It is a super-2 number, since 2×7842011² = 122994273048242, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23), and also a Moran number because the ratio is a prime number: 340957 = 7842011 / (7 + 8 + 4 + 2 + 0 + 1 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7842013) 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, 170456 + ... + 170501.

It is an arithmetic number, because the mean of its divisors is an integer number (2045748).

Almost surely, 2^7842011 is an apocalyptic number.

7842011 is a deficient number, since it is larger than the sum of its proper divisors (340981).

7842011 is a wasteful number, since it uses less digits than its factorization.

7842011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340980.

The product of its (nonzero) digits is 448, while the sum is 23.

The square root of 7842011 is about 2800.3590841176. The cubic root of 7842011 is about 198.6746617931.

Adding to 7842011 its reverse (1102487), we get a palindrome (8944498).

The spelling of 7842011 in words is "seven million, eight hundred forty-two thousand, eleven".