7840501 has 2 divisors, whose sum is σ = 7840502. Its totient is φ = 7840500.

The previous prime is 7840499. The next prime is 7840507. The reversal of 7840501 is 1050487.

7840501 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7700625 + 139876 = 2775^2 + 374^2 .

It is a cyclic number.

It is not a de Polignac number, because 7840501 - 2¹ = 7840499 is a prime.

It is a super-2 number, since 2×7840501² = 122946911862002, which contains 22 as substring.

Together with 7840499, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7840507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3920250 + 3920251.

It is an arithmetic number, because the mean of its divisors is an integer number (3920251).

Almost surely, 2^7840501 is an apocalyptic number.

It is an amenable number.

7840501 is a deficient number, since it is larger than the sum of its proper divisors (1).

7840501 is an equidigital number, since it uses as much as digits as its factorization.

7840501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1120, while the sum is 25.

The square root of 7840501 is about 2800.0894628565. The cubic root of 7840501 is about 198.6619091970.

Adding to 7840501 its reverse (1050487), we get a palindrome (8890988).

The spelling of 7840501 in words is "seven million, eight hundred forty thousand, five hundred one".